138367560 has 32 divisors (see below), whose sum is σ = 415103040. Its totient is φ = 36897984.

The previous prime is 138367553. The next prime is 138367589. The reversal of 138367560 is 65763831.

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, 576412 + ... + 576651.

It is an arithmetic number, because the mean of its divisors is an integer number (12971970).

Almost surely, 2^138367560 is an apocalyptic number.

138367560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138367560 is an abundant number, since it is smaller than the sum of its proper divisors (276735480).

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

138367560 is a wasteful number, since it uses less digits than its factorization.

138367560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1153077 (or 1153073 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 138367560 is about 11762.9741137180. The cubic root of 138367560 is about 517.2233158872.

The spelling of 138367560 in words is "one hundred thirty-eight million, three hundred sixty-seven thousand, five hundred sixty".