129597168 has 40 divisors (see below), whose sum is σ = 335200768. Its totient is φ = 43146432.

The previous prime is 129597161. The next prime is 129597173. The reversal of 129597168 is 861795921.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129597161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74355 + ... + 76077.

Almost surely, 2^129597168 is an apocalyptic number.

It is an amenable number.

129597168 is an abundant number, since it is smaller than the sum of its proper divisors (205603600).

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

129597168 is a wasteful number, since it uses less digits than its factorization.

129597168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3301 (or 3295 counting only the distinct ones).

The product of its digits is 272160, while the sum is 48.

The square root of 129597168 is about 11384.0751930054. The cubic root of 129597168 is about 506.0559130411.

The spelling of 129597168 in words is "one hundred twenty-nine million, five hundred ninety-seven thousand, one hundred sixty-eight".