125507902 has 16 divisors (see below), whose sum is σ = 209284992. Its totient is φ = 56057760.

The previous prime is 125507887. The next prime is 125507903. The reversal of 125507902 is 209705521.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125507903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77053 + ... + 78664.

It is an arithmetic number, because the mean of its divisors is an integer number (13080312).

Almost surely, 2^125507902 is an apocalyptic number.

125507902 is a deficient number, since it is larger than the sum of its proper divisors (83777090).

125507902 is a wasteful number, since it uses less digits than its factorization.

125507902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155763.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 125507902 is about 11203.0309291727. The cubic root of 125507902 is about 500.6762875246.

The spelling of 125507902 in words is "one hundred twenty-five million, five hundred seven thousand, nine hundred two".