138552952 has 32 divisors (see below), whose sum is σ = 271260000. Its totient is φ = 66261888.

The previous prime is 138552949. The next prime is 138552977. The reversal of 138552952 is 259255831.

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, 22549 + ... + 28027.

It is an arithmetic number, because the mean of its divisors is an integer number (8476875).

Almost surely, 2^138552952 is an apocalyptic number.

It is an amenable number.

138552952 is a deficient number, since it is larger than the sum of its proper divisors (132707048).

138552952 is a wasteful number, since it uses less digits than its factorization.

138552952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5623 (or 5619 counting only the distinct ones).

The product of its digits is 108000, while the sum is 40.

The square root of 138552952 is about 11770.8517958557. The cubic root of 138552952 is about 517.4542136283.

It can be divided in two parts, 13855 and 2952, that added together give a 5-th power (16807 = 7⁵).

The spelling of 138552952 in words is "one hundred thirty-eight million, five hundred fifty-two thousand, nine hundred fifty-two".