315137 has 4 divisors (see below), whose sum is σ = 317376. Its totient is φ = 312900.

The previous prime is 315127. The next prime is 315179. The reversal of 315137 is 731513.

It is a happy number.

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: 731513 = 71 ⋅10303.

It is a cyclic number.

It is not a de Polignac number, because 315137 - 2¹⁰ = 314113 is a prime.

It is a super-2 number, since 2×315137² = 198622657538, which contains 22 as substring.

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 315137.

It is not an unprimeable number, because it can be changed into a prime (315127) 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, 893 + ... + 1194.

It is an arithmetic number, because the mean of its divisors is an integer number (79344).

2³¹⁵¹³⁷ is an apocalyptic number.

It is an amenable number.

315137 is a deficient number, since it is larger than the sum of its proper divisors (2239).

315137 is a wasteful number, since it uses less digits than its factorization.

315137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2238.

The product of its digits is 315, while the sum is 20.

The square root of 315137 is about 561.3706440490. The cubic root of 315137 is about 68.0507838634.

The spelling of 315137 in words is "three hundred fifteen thousand, one hundred thirty-seven".