129161304 has 56 divisors (see below), whose sum is σ = 363116460. Its totient is φ = 43051824.

The previous prime is 129161269. The next prime is 129161317. The reversal of 129161304 is 403161921.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 5242 + ... + 16905.

Almost surely, 2^129161304 is an apocalyptic number.

It is an amenable number.

129161304 is an abundant number, since it is smaller than the sum of its proper divisors (233955156).

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

129161304 is an equidigital number, since it uses as much as digits as its factorization.

129161304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22171 (or 22152 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 129161304 is about 11364.9154858274. The cubic root of 129161304 is about 505.4879497695.

The spelling of 129161304 in words is "one hundred twenty-nine million, one hundred sixty-one thousand, three hundred four".