136129168 has 20 divisors (see below), whose sum is σ = 301429120. Its totient is φ = 58341024.

The previous prime is 136129139. The next prime is 136129181. The reversal of 136129168 is 861921631.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 607608 + ... + 607831.

It is an arithmetic number, because the mean of its divisors is an integer number (15071456).

Almost surely, 2^136129168 is an apocalyptic number.

It is an amenable number.

136129168 is an abundant number, since it is smaller than the sum of its proper divisors (165299952).

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

136129168 is a wasteful number, since it uses less digits than its factorization.

136129168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1215454 (or 1215448 counting only the distinct ones).

The product of its digits is 15552, while the sum is 37.

The square root of 136129168 is about 11667.4405076692. The cubic root of 136129168 is about 514.4190741161.

The spelling of 136129168 in words is "one hundred thirty-six million, one hundred twenty-nine thousand, one hundred sixty-eight".