317138 has 8 divisors (see below), whose sum is σ = 478332. Its totient is φ = 157696.

The previous prime is 317123. The next prime is 317159. The reversal of 317138 is 831713.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 316969 + 169 = 563^2 + 13^2 .

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

It is a super-2 number, since 2×317138² = 201153022088, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206 + ... + 822.

2³¹⁷¹³⁸ is an apocalyptic number.

317138 is a deficient number, since it is larger than the sum of its proper divisors (161194).

317138 is a wasteful number, since it uses less digits than its factorization.

317138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876.

The product of its digits is 504, while the sum is 23.

The square root of 317138 is about 563.1500688094. The cubic root of 317138 is about 68.1945122762.

The spelling of 317138 in words is "three hundred seventeen thousand, one hundred thirty-eight".