313915 has 8 divisors (see below), whose sum is σ = 430560. Its totient is φ = 215232.

The previous prime is 313909. The next prime is 313921. The reversal of 313915 is 519313.

It is an interprime number because it is at equal distance from previous prime (313909) and next prime (313921).

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

It is a cyclic number.

It is not a de Polignac number, because 313915 - 2⁵ = 313883 is a prime.

It is an Ulam number.

313915 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4450 + ... + 4519.

It is an arithmetic number, because the mean of its divisors is an integer number (53820).

2³¹³⁹¹⁵ is an apocalyptic number.

313915 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

313915 is a deficient number, since it is larger than the sum of its proper divisors (116645).

313915 is an equidigital number, since it uses as much as digits as its factorization.

313915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8981.

The product of its digits is 405, while the sum is 22.

The square root of 313915 is about 560.2811794091. The cubic root of 313915 is about 67.9627102353.

The spelling of 313915 in words is "three hundred thirteen thousand, nine hundred fifteen".