138764156 has 12 divisors (see below), whose sum is σ = 243163368. Its totient is φ = 69288912.

The previous prime is 138764111. The next prime is 138764161. The reversal of 138764156 is 651467831.

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, 19886 + ... + 25941.

It is an arithmetic number, because the mean of its divisors is an integer number (20263614).

Almost surely, 2^138764156 is an apocalyptic number.

It is an amenable number.

138764156 is a deficient number, since it is larger than the sum of its proper divisors (104399212).

138764156 is a wasteful number, since it uses less digits than its factorization.

138764156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46588 (or 46586 counting only the distinct ones).

The product of its digits is 120960, while the sum is 41.

The square root of 138764156 is about 11779.8198627993. The cubic root of 138764156 is about 517.7170082582.

The spelling of 138764156 in words is "one hundred thirty-eight million, seven hundred sixty-four thousand, one hundred fifty-six".