315318877 has 4 divisors (see below), whose sum is σ = 315468160. Its totient is φ = 315169596.

The previous prime is 315318863. The next prime is 315318893. The reversal of 315318877 is 778813513.

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.

It is a cyclic number.

It is not a de Polignac number, because 315318877 - 2¹¹ = 315316829 is a prime.

It is a super-2 number, since 2×315318877² = 198851988385082258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315318977) 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, 71427 + ... + 75712.

It is an arithmetic number, because the mean of its divisors is an integer number (78867040).

Almost surely, 2^315318877 is an apocalyptic number.

It is an amenable number.

315318877 is a deficient number, since it is larger than the sum of its proper divisors (149283).

315318877 is a wasteful number, since it uses less digits than its factorization.

315318877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149282.

The product of its digits is 141120, while the sum is 43.

The square root of 315318877 is about 17757.2204187480. The cubic root of 315318877 is about 680.6387287137.

The spelling of 315318877 in words is "three hundred fifteen million, three hundred eighteen thousand, eight hundred seventy-seven".