138175264 has 24 divisors (see below), whose sum is σ = 272447280. Its totient is φ = 68982336.

The previous prime is 138175223. The next prime is 138175319. The reversal of 138175264 is 462571831.

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, 20727 + ... + 26569.

It is an arithmetic number, because the mean of its divisors is an integer number (11351970).

Almost surely, 2^138175264 is an apocalyptic number.

It is an amenable number.

138175264 is a deficient number, since it is larger than the sum of its proper divisors (134272016).

138175264 is an equidigital number, since it uses as much as digits as its factorization.

138175264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6592 (or 6584 counting only the distinct ones).

The product of its digits is 40320, while the sum is 37.

The square root of 138175264 is about 11754.7974886852. The cubic root of 138175264 is about 516.9836014987.

The spelling of 138175264 in words is "one hundred thirty-eight million, one hundred seventy-five thousand, two hundred sixty-four".