138795936 has 48 divisors (see below), whose sum is σ = 364964544. Its totient is φ = 46185984.

The previous prime is 138795919. The next prime is 138795949. The reversal of 138795936 is 639597831.

It is a tau number, because it is divible by the number of its divisors (48).

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, 89181 + ... + 90723.

It is an arithmetic number, because the mean of its divisors is an integer number (7603428).

Almost surely, 2^138795936 is an apocalyptic number.

138795936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

138795936 is an abundant number, since it is smaller than the sum of its proper divisors (226168608).

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

138795936 is a wasteful number, since it uses less digits than its factorization.

138795936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2493 (or 2485 counting only the distinct ones).

The product of its digits is 1224720, while the sum is 51.

The square root of 138795936 is about 11781.1687026373. The cubic root of 138795936 is about 517.7565280476.

The spelling of 138795936 in words is "one hundred thirty-eight million, seven hundred ninety-five thousand, nine hundred thirty-six".