317117129 has 4 divisors (see below), whose sum is σ = 362419584. Its totient is φ = 271814676.

The previous prime is 317117111. The next prime is 317117149. The reversal of 317117129 is 921711713.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 921711713 = 13 ⋅70900901.

It is not a de Polignac number, because 317117129 - 2²⁸ = 48681673 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 317117095 and 317117104.

It is not an unprimeable number, because it can be changed into a prime (317117149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22651217 + ... + 22651230.

It is an arithmetic number, because the mean of its divisors is an integer number (90604896).

Almost surely, 2^317117129 is an apocalyptic number.

It is an amenable number.

317117129 is a deficient number, since it is larger than the sum of its proper divisors (45302455).

317117129 is an equidigital number, since it uses as much as digits as its factorization.

317117129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45302454.

The product of its digits is 2646, while the sum is 32.

The square root of 317117129 is about 17807.7828210027. The cubic root of 317117129 is about 681.9301627247.

The spelling of 317117129 in words is "three hundred seventeen million, one hundred seventeen thousand, one hundred twenty-nine".