129253375 has 8 divisors (see below), whose sum is σ = 161308368. Its totient is φ = 103402600.

The previous prime is 129253357. The next prime is 129253381. The reversal of 129253375 is 573352921.

It is not a de Polignac number, because 129253375 - 2²⁵ = 95698943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 516889 + ... + 517138.

It is an arithmetic number, because the mean of its divisors is an integer number (20163546).

Almost surely, 2^129253375 is an apocalyptic number.

129253375 is a deficient number, since it is larger than the sum of its proper divisors (32054993).

129253375 is an equidigital number, since it uses as much as digits as its factorization.

129253375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034042 (or 1034032 counting only the distinct ones).

The product of its digits is 56700, while the sum is 37.

The square root of 129253375 is about 11368.9654322634. The cubic root of 129253375 is about 505.6080314692.

The spelling of 129253375 in words is "one hundred twenty-nine million, two hundred fifty-three thousand, three hundred seventy-five".