138711324 has 24 divisors (see below), whose sum is σ = 340695040. Its totient is φ = 43803504.

The previous prime is 138711299. The next prime is 138711337. The reversal of 138711324 is 423117831.

It is a junction number, because it is equal to n+sod(n) for n = 138711291 and 138711300.

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, 303964 + ... + 304419.

Almost surely, 2^138711324 is an apocalyptic number.

It is an amenable number.

138711324 is an abundant number, since it is smaller than the sum of its proper divisors (201983716).

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

138711324 is a wasteful number, since it uses less digits than its factorization.

138711324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608409 (or 608407 counting only the distinct ones).

The product of its digits is 4032, while the sum is 30.

The square root of 138711324 is about 11777.5771701993. The cubic root of 138711324 is about 517.6512960508.

The spelling of 138711324 in words is "one hundred thirty-eight million, seven hundred eleven thousand, three hundred twenty-four".