129133317 has 8 divisors (see below), whose sum is σ = 178115040. Its totient is φ = 83120240.

The previous prime is 129133297. The next prime is 129133331. The reversal of 129133317 is 713331921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 129133317 - 2⁸ = 129133061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129133337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 742059 + ... + 742232.

It is an arithmetic number, because the mean of its divisors is an integer number (22264380).

Almost surely, 2^129133317 is an apocalyptic number.

It is an amenable number.

129133317 is a deficient number, since it is larger than the sum of its proper divisors (48981723).

129133317 is a wasteful number, since it uses less digits than its factorization.

129133317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1484323.

The product of its digits is 3402, while the sum is 30.

The square root of 129133317 is about 11363.6841297178. The cubic root of 129133317 is about 505.4514369938.

The spelling of 129133317 in words is "one hundred twenty-nine million, one hundred thirty-three thousand, three hundred seventeen".