138766080 has 72 divisors (see below), whose sum is σ = 443196432. Its totient is φ = 37003264.

The previous prime is 138766079. The next prime is 138766097. The reversal of 138766080 is 80667831.

It is a congruent number.

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, 14229 + ... + 21908.

It is an arithmetic number, because the mean of its divisors is an integer number (6155506).

Almost surely, 2^138766080 is an apocalyptic number.

138766080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138766080 is an abundant number, since it is smaller than the sum of its proper divisors (304430352).

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

138766080 is an equidigital number, since it uses as much as digits as its factorization.

138766080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36161 (or 36147 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 138766080 is about 11779.9015276020. The cubic root of 138766080 is about 517.7194010061.

The spelling of 138766080 in words is "one hundred thirty-eight million, seven hundred sixty-six thousand, eighty".