138862232 has 8 divisors (see below), whose sum is σ = 260366700. Its totient is φ = 69431112.

The previous prime is 138862211. The next prime is 138862249. The reversal of 138862232 is 232268831.

138862232 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 138862192 and 138862201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8678882 + ... + 8678897.

Almost surely, 2^138862232 is an apocalyptic number.

It is an amenable number.

138862232 is a deficient number, since it is larger than the sum of its proper divisors (121504468).

138862232 is a wasteful number, since it uses less digits than its factorization.

138862232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17357785 (or 17357781 counting only the distinct ones).

The product of its digits is 27648, while the sum is 35.

The square root of 138862232 is about 11783.9820094907. The cubic root of 138862232 is about 517.8389505451.

The spelling of 138862232 in words is "one hundred thirty-eight million, eight hundred sixty-two thousand, two hundred thirty-two".