129793025 has 24 divisors (see below), whose sum is σ = 171149760. Its totient is φ = 97423040.

The previous prime is 129792983. The next prime is 129793031. The reversal of 129793025 is 520397921.

It is not a de Polignac number, because 129793025 - 2⁶ = 129792961 is a prime.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 129793025.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28346 + ... + 32604.

It is an arithmetic number, because the mean of its divisors is an integer number (7131240).

Almost surely, 2^129793025 is an apocalyptic number.

It is an amenable number.

129793025 is a deficient number, since it is larger than the sum of its proper divisors (41356735).

129793025 is a wasteful number, since it uses less digits than its factorization.

129793025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4345 (or 4340 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 129793025 is about 11392.6741812447. The cubic root of 129793025 is about 506.3107146610.

The spelling of 129793025 in words is "one hundred twenty-nine million, seven hundred ninety-three thousand, twenty-five".