138625672 has 32 divisors (see below), whose sum is σ = 278107200. Its totient is φ = 64584000.

The previous prime is 138625649. The next prime is 138625703. The reversal of 138625672 is 276526831.

138625672 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1797 + ... + 16747.

It is an arithmetic number, because the mean of its divisors is an integer number (8690850).

Almost surely, 2^138625672 is an apocalyptic number.

It is an amenable number.

138625672 is an abundant number, since it is smaller than the sum of its proper divisors (139481528).

138625672 is a wasteful number, since it uses less digits than its factorization.

138625672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15037 (or 15033 counting only the distinct ones).

The product of its digits is 120960, while the sum is 40.

The square root of 138625672 is about 11773.9403769511. The cubic root of 138625672 is about 517.5447270108.

The spelling of 138625672 in words is "one hundred thirty-eight million, six hundred twenty-five thousand, six hundred seventy-two".