317285 has 16 divisors (see below), whose sum is σ = 414720. Its totient is φ = 232320.

The previous prime is 317279. The next prime is 317321. The reversal of 317285 is 582713.

It is not a de Polignac number, because 317285 - 2⁴ = 317269 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3521 + ... + 3609.

It is an arithmetic number, because the mean of its divisors is an integer number (25920).

2³¹⁷²⁸⁵ is an apocalyptic number.

It is an amenable number.

317285 is a deficient number, since it is larger than the sum of its proper divisors (97435).

317285 is a wasteful number, since it uses less digits than its factorization.

317285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148.

The product of its digits is 1680, while the sum is 26.

The square root of 317285 is about 563.2805695211. The cubic root of 317285 is about 68.2050471694.

Adding to 317285 its reverse (582713), we get a palindrome (899998).

The spelling of 317285 in words is "three hundred seventeen thousand, two hundred eighty-five".