317129 has 4 divisors (see below), whose sum is σ = 333840. Its totient is φ = 300420.

The previous prime is 317123. The next prime is 317159. The reversal of 317129 is 921713.

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: 921713 = 13 ⋅70901.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-317129 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 317129.

It is not an unprimeable number, because it can be changed into a prime (317123) 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, 8327 + ... + 8364.

It is an arithmetic number, because the mean of its divisors is an integer number (83460).

2³¹⁷¹²⁹ is an apocalyptic number.

It is an amenable number.

317129 is a deficient number, since it is larger than the sum of its proper divisors (16711).

317129 is a wasteful number, since it uses less digits than its factorization.

317129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16710.

The product of its digits is 378, while the sum is 23.

The square root of 317129 is about 563.1420779874. The cubic root of 317129 is about 68.1938671770.

The spelling of 317129 in words is "three hundred seventeen thousand, one hundred twenty-nine".