317239 has 8 divisors (see below), whose sum is σ = 356832. Its totient is φ = 279840.

The previous prime is 317227. The next prime is 317257. The reversal of 317239 is 932713.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-317239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317209) 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, 232 + ... + 829.

It is an arithmetic number, because the mean of its divisors is an integer number (44604).

2³¹⁷²³⁹ is an apocalyptic number.

317239 is a deficient number, since it is larger than the sum of its proper divisors (39593).

317239 is a wasteful number, since it uses less digits than its factorization.

317239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1097.

The product of its digits is 1134, while the sum is 25.

The square root of 317239 is about 563.2397358142. The cubic root of 317239 is about 68.2017508860.

The spelling of 317239 in words is "three hundred seventeen thousand, two hundred thirty-nine".