129004164 has 45 divisors (see below), whose sum is σ = 337777671. Its totient is φ = 42933240.

The previous prime is 129004153. The next prime is 129004193. The reversal of 129004164 is 461400921.

The square root of 129004164 is 11358.

It is a perfect power (a square), and thus also a powerful number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 204129 + ... + 204759.

Almost surely, 2^129004164 is an apocalyptic number.

129004164 is the 11358-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 129004164

129004164 is an abundant number, since it is smaller than the sum of its proper divisors (208773507).

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

129004164 is an frugal number, since it uses more digits than its factorization.

129004164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1278 (or 636 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The cubic root of 129004164 is about 505.2828712909.

The spelling of 129004164 in words is "one hundred twenty-nine million, four thousand, one hundred sixty-four".