138560908 has 6 divisors (see below), whose sum is σ = 242481596. Its totient is φ = 69280452.

The previous prime is 138560881. The next prime is 138560941. The reversal of 138560908 is 809065831.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17320110 + ... + 17320117.

Almost surely, 2^138560908 is an apocalyptic number.

It is an amenable number.

138560908 is a deficient number, since it is larger than the sum of its proper divisors (103920688).

138560908 is a wasteful number, since it uses less digits than its factorization.

138560908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34640231 (or 34640229 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 138560908 is about 11771.1897444566. The cubic root of 138560908 is about 517.4641178727.

The spelling of 138560908 in words is "one hundred thirty-eight million, five hundred sixty thousand, nine hundred eight".