125865923 has 2 divisors, whose sum is σ = 125865924. Its totient is φ = 125865922.

The previous prime is 125865911. The next prime is 125865973. The reversal of 125865923 is 329568521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125865923 - 2⁸ = 125865667 is a prime.

It is not a weakly prime, because it can be changed into another prime (125865973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62932961 + 62932962.

It is an arithmetic number, because the mean of its divisors is an integer number (62932962).

Almost surely, 2^125865923 is an apocalyptic number.

125865923 is a deficient number, since it is larger than the sum of its proper divisors (1).

125865923 is an equidigital number, since it uses as much as digits as its factorization.

125865923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129600, while the sum is 41.

The square root of 125865923 is about 11218.9983064443. The cubic root of 125865923 is about 501.1519081772.

The spelling of 125865923 in words is "one hundred twenty-five million, eight hundred sixty-five thousand, nine hundred twenty-three".