125620904 has 8 divisors (see below), whose sum is σ = 235539210. Its totient is φ = 62810448.

The previous prime is 125620903. The next prime is 125620933. The reversal of 125620904 is 409026521.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 100600900 + 25020004 = 10030^2 + 5002^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×125620904² = 31561223043554432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (125620903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7851299 + ... + 7851314.

Almost surely, 2^125620904 is an apocalyptic number.

It is an amenable number.

125620904 is a deficient number, since it is larger than the sum of its proper divisors (109918306).

125620904 is a wasteful number, since it uses less digits than its factorization.

125620904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15702619 (or 15702615 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 125620904 is about 11208.0731617883. The cubic root of 125620904 is about 500.8265050261.

The spelling of 125620904 in words is "one hundred twenty-five million, six hundred twenty thousand, nine hundred four".