313505215 has 8 divisors (see below), whose sum is σ = 379169280. Its totient is φ = 248828832.

The previous prime is 313505191. The next prime is 313505221. The reversal of 313505215 is 512505313.

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 313505215 - 2²⁷ = 179287487 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 313505215.

It is a congruent 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, 246220 + ... + 247489.

It is an arithmetic number, because the mean of its divisors is an integer number (47396160).

Almost surely, 2^313505215 is an apocalyptic number.

313505215 is a deficient number, since it is larger than the sum of its proper divisors (65664065).

313505215 is a wasteful number, since it uses less digits than its factorization.

313505215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493841.

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 313505215 is about 17706.0784760488. The cubic root of 313505215 is about 679.3312449128.

The spelling of 313505215 in words is "three hundred thirteen million, five hundred five thousand, two hundred fifteen".