138184232 has 16 divisors (see below), whose sum is σ = 259316640. Its totient is φ = 69033136.

The previous prime is 138184213. The next prime is 138184243. The reversal of 138184232 is 232481831.

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, 3533 + ... + 16995.

It is an arithmetic number, because the mean of its divisors is an integer number (16207290).

Almost surely, 2^138184232 is an apocalyptic number.

It is an amenable number.

138184232 is a deficient number, since it is larger than the sum of its proper divisors (121132408).

138184232 is a wasteful number, since it uses less digits than its factorization.

138184232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14752 (or 14748 counting only the distinct ones).

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

The square root of 138184232 is about 11755.1789437677. The cubic root of 138184232 is about 516.9947858658.

The spelling of 138184232 in words is "one hundred thirty-eight million, one hundred eighty-four thousand, two hundred thirty-two".