125639036 has 12 divisors (see below), whose sum is σ = 221020800. Its totient is φ = 62490240.

The previous prime is 125639023. The next prime is 125639081. The reversal of 125639036 is 630936521.

It is a junction number, because it is equal to n+sod(n) for n = 125638987 and 125639005.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 81461 + ... + 82988.

It is an arithmetic number, because the mean of its divisors is an integer number (18418400).

Almost surely, 2^125639036 is an apocalyptic number.

It is an amenable number.

125639036 is a deficient number, since it is larger than the sum of its proper divisors (95381764).

125639036 is a wasteful number, since it uses less digits than its factorization.

125639036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164644 (or 164642 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 35.

The square root of 125639036 is about 11208.8820138317. The cubic root of 125639036 is about 500.8506001382.

The spelling of 125639036 in words is "one hundred twenty-five million, six hundred thirty-nine thousand, thirty-six".