125090857 has 2 divisors, whose sum is σ = 125090858. Its totient is φ = 125090856.

The previous prime is 125090843. The next prime is 125090893. The reversal of 125090857 is 758090521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63059481 + 62031376 = 7941^2 + 7876^2 .

It is a cyclic number.

It is not a de Polignac number, because 125090857 - 2²³ = 116702249 is a prime.

It is not a weakly prime, because it can be changed into another prime (125090807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62545428 + 62545429.

It is an arithmetic number, because the mean of its divisors is an integer number (62545429).

Almost surely, 2^125090857 is an apocalyptic number.

It is an amenable number.

125090857 is a deficient number, since it is larger than the sum of its proper divisors (1).

125090857 is an equidigital number, since it uses as much as digits as its factorization.

125090857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25200, while the sum is 37.

The square root of 125090857 is about 11184.4023979826. The cubic root of 125090857 is about 500.1211133274.

The spelling of 125090857 in words is "one hundred twenty-five million, ninety thousand, eight hundred fifty-seven".