138556160 has 36 divisors (see below), whose sum is σ = 331888368. Its totient is φ = 55421952.

The previous prime is 138556147. The next prime is 138556181. The reversal of 138556160 is 61655831.

It is a self number, because there is not a number n which added to its sum of digits gives 138556160.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52844 + ... + 55403.

Almost surely, 2^138556160 is an apocalyptic number.

138556160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138556160 is an abundant number, since it is smaller than the sum of its proper divisors (193332208).

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

138556160 is an equidigital number, since it uses as much as digits as its factorization.

138556160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108268 (or 108254 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 138556160 is about 11770.9880638798. The cubic root of 138556160 is about 517.4582072405.

The spelling of 138556160 in words is "one hundred thirty-eight million, five hundred fifty-six thousand, one hundred sixty".