315399169 has 4 divisors (see below), whose sum is σ = 315530820. Its totient is φ = 315267520.

The previous prime is 315399151. The next prime is 315399199. The reversal of 315399169 is 961993513.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16524225 + 298874944 = 4065^2 + 17288^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315399169 is a prime.

It is a super-2 number, since 2×315399169² = 198953271611781122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315399199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62164 + ... + 67045.

It is an arithmetic number, because the mean of its divisors is an integer number (78882705).

Almost surely, 2^315399169 is an apocalyptic number.

It is an amenable number.

315399169 is a deficient number, since it is larger than the sum of its proper divisors (131651).

315399169 is a wasteful number, since it uses less digits than its factorization.

315399169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131650.

The product of its digits is 196830, while the sum is 46.

The square root of 315399169 is about 17759.4811016538. The cubic root of 315399169 is about 680.6964958513.

The spelling of 315399169 in words is "three hundred fifteen million, three hundred ninety-nine thousand, one hundred sixty-nine".