137159808 has 64 divisors (see below), whose sum is σ = 385780320. Its totient is φ = 43028480.

The previous prime is 137159783. The next prime is 137159819. The reversal of 137159808 is 808951731.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 137159808.

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, 3978 + ... + 17033.

Almost surely, 2^137159808 is an apocalyptic number.

It is an amenable number.

137159808 is an abundant number, since it is smaller than the sum of its proper divisors (248620512).

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

137159808 is a wasteful number, since it uses less digits than its factorization.

137159808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21045 (or 21033 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 42.

The square root of 137159808 is about 11711.5245805147. The cubic root of 137159808 is about 515.7140414236.

The spelling of 137159808 in words is "one hundred thirty-seven million, one hundred fifty-nine thousand, eight hundred eight".