138595604 has 12 divisors (see below), whose sum is σ = 277191264. Its totient is φ = 59398104.

The previous prime is 138595591. The next prime is 138595657. The reversal of 138595604 is 406595831.

138595604 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2474894 + ... + 2474949.

It is an arithmetic number, because the mean of its divisors is an integer number (23099272).

Almost surely, 2^138595604 is an apocalyptic number.

138595604 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

138595604 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138595604 is a wasteful number, since it uses less digits than its factorization.

138595604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4949854 (or 4949852 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 138595604 is about 11772.6634199743. The cubic root of 138595604 is about 517.5073057072.

The spelling of 138595604 in words is "one hundred thirty-eight million, five hundred ninety-five thousand, six hundred four".