129024275 has 6 divisors (see below), whose sum is σ = 159990132. Its totient is φ = 103219400.

The previous prime is 129024257. The next prime is 129024283. The reversal of 129024275 is 572420921.

It is not a de Polignac number, because 129024275 - 2²⁰ = 127975699 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2580461 + ... + 2580510.

It is an arithmetic number, because the mean of its divisors is an integer number (26665022).

Almost surely, 2^129024275 is an apocalyptic number.

129024275 is a deficient number, since it is larger than the sum of its proper divisors (30965857).

129024275 is an equidigital number, since it uses as much as digits as its factorization.

129024275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5160981 (or 5160976 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 129024275 is about 11358.8852886188. The cubic root of 129024275 is about 505.3091268150.

The spelling of 129024275 in words is "one hundred twenty-nine million, twenty-four thousand, two hundred seventy-five".