138814232 has 16 divisors (see below), whose sum is σ = 267311760. Its totient is φ = 67531104.

The previous prime is 138814229. The next prime is 138814243. The reversal of 138814232 is 232418831.

138814232 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 234188 + ... + 234779.

It is an arithmetic number, because the mean of its divisors is an integer number (16706985).

Almost surely, 2^138814232 is an apocalyptic number.

It is an amenable number.

138814232 is a deficient number, since it is larger than the sum of its proper divisors (128497528).

138814232 is a wasteful number, since it uses less digits than its factorization.

138814232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469010 (or 469006 counting only the distinct ones).

The product of its digits is 9216, while the sum is 32.

The square root of 138814232 is about 11781.9451704716. The cubic root of 138814232 is about 517.7792771700.

The spelling of 138814232 in words is "one hundred thirty-eight million, eight hundred fourteen thousand, two hundred thirty-two".