136831904 has 24 divisors (see below), whose sum is σ = 293878368. Its totient is φ = 62196160.

The previous prime is 136831873. The next prime is 136831907. The reversal of 136831904 is 409138631.

It is not an unprimeable number, because it can be changed into a prime (136831907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194012 + ... + 194715.

It is an arithmetic number, because the mean of its divisors is an integer number (12244932).

Almost surely, 2^136831904 is an apocalyptic number.

It is an amenable number.

136831904 is an abundant number, since it is smaller than the sum of its proper divisors (157046464).

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

136831904 is a wasteful number, since it uses less digits than its factorization.

136831904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388748 (or 388740 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 136831904 is about 11697.5170014837. The cubic root of 136831904 is about 515.3027459266.

The spelling of 136831904 in words is "one hundred thirty-six million, eight hundred thirty-one thousand, nine hundred four".