129496528 has 40 divisors (see below), whose sum is σ = 291038912. Its totient is φ = 54667008.

The previous prime is 129496511. The next prime is 129496529. The reversal of 129496528 is 825694921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129496529) 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, 1125 + ... + 16132.

Almost surely, 2^129496528 is an apocalyptic number.

It is an amenable number.

129496528 is an abundant number, since it is smaller than the sum of its proper divisors (161542384).

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

129496528 is a wasteful number, since it uses less digits than its factorization.

129496528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17339 (or 17333 counting only the distinct ones).

The product of its digits is 311040, while the sum is 46.

The square root of 129496528 is about 11379.6541247966. The cubic root of 129496528 is about 505.9248848280.

The spelling of 129496528 in words is "one hundred twenty-nine million, four hundred ninety-six thousand, five hundred twenty-eight".