125768081 has 2 divisors, whose sum is σ = 125768082. Its totient is φ = 125768080.

The previous prime is 125768053. The next prime is 125768107. The reversal of 125768081 is 180867521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67092481 + 58675600 = 8191^2 + 7660^2 .

It is a cyclic number.

It is not a de Polignac number, because 125768081 - 2⁶ = 125768017 is a prime.

It is a super-2 number, since 2×125768081² = 31635220396845122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (125768021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62884040 + 62884041.

It is an arithmetic number, because the mean of its divisors is an integer number (62884041).

Almost surely, 2^125768081 is an apocalyptic number.

It is an amenable number.

125768081 is a deficient number, since it is larger than the sum of its proper divisors (1).

125768081 is an equidigital number, since it uses as much as digits as its factorization.

125768081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26880, while the sum is 38.

The square root of 125768081 is about 11214.6369089686. The cubic root of 125768081 is about 501.0220175370.

The spelling of 125768081 in words is "one hundred twenty-five million, seven hundred sixty-eight thousand, eighty-one".