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What is the Square Root of 16491?

The square root of 16491 is 128.4172885557. Calculate another value or review the exact form, nearby perfect powers, and verification.

Answer

Square Root√16491 = 128.4172885557
CalculatedNon-perfect squareIrrational
Exact form√16491
Perfect squareNo
Number typeIrrational
Verification128.41728855572 ≈ 16491

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How the answer is calculated

We solve x2 = 16491. The resulting value is x = 128.4172885557.

Verification: 128.41728855572 ≈ 16491.

Simplified radical form

The square root of 16491 in simplified radical form is √16491.

There are no square factors that can be taken outside the radical, so √16491 is already in simplest radical form.

Nearest Perfect squares

PositionBaseValue
Lower or equal12816384
Upper or equal12916641

Nearby square roots

NumberSquare root
√16488128.4056073542
√16489128.4095012061
√16490128.4133949399
√16491128.4172885557
√16492128.4211820534
√16493128.4250754331
√16494128.4289686948

Number properties

Is 16491 a perfect square?

No. Its square root is not a whole number.

Is the square root rational or irrational?

√16491 is irrational because 16491 is not a perfect square.

Visual guide

Square Root function graph

See how the result changes as the input moves across positive and negative values. Square roots are shown for non-negative inputs; cube roots continue through negative inputs.

Common questions

Frequently asked questions

It asks for the number that, when raised to the power of 2, equals 16491.