138625652 has 24 divisors (see below), whose sum is σ = 265121472. Its totient is φ = 62899200.

The previous prime is 138625649. The next prime is 138625703. The reversal of 138625652 is 256526831.

It is a congruent number.

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, 25268 + ... + 30260.

It is an arithmetic number, because the mean of its divisors is an integer number (11046728).

Almost surely, 2^138625652 is an apocalyptic number.

It is an amenable number.

138625652 is a deficient number, since it is larger than the sum of its proper divisors (126495820).

138625652 is a wasteful number, since it uses less digits than its factorization.

138625652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5639 (or 5637 counting only the distinct ones).

The product of its digits is 86400, while the sum is 38.

The square root of 138625652 is about 11773.9395276178. The cubic root of 138625652 is about 517.5447021215.

The spelling of 138625652 in words is "one hundred thirty-eight million, six hundred twenty-five thousand, six hundred fifty-two".