315351361 has 4 divisors (see below), whose sum is σ = 339609172. Its totient is φ = 291093552.

The previous prime is 315351353. The next prime is 315351371. The reversal of 315351361 is 163153513.

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 195580225 + 119771136 = 13985^2 + 10944^2 .

It is a cyclic number.

It is not a de Polignac number, because 315351361 - 2³ = 315351353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315351371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12128886 + ... + 12128911.

It is an arithmetic number, because the mean of its divisors is an integer number (84902293).

Almost surely, 2^315351361 is an apocalyptic number.

It is an amenable number.

315351361 is a deficient number, since it is larger than the sum of its proper divisors (24257811).

315351361 is a wasteful number, since it uses less digits than its factorization.

315351361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24257810.

The product of its digits is 4050, while the sum is 28.

The square root of 315351361 is about 17758.1350653722. The cubic root of 315351361 is about 680.6621009367.

It can be divided in two parts, 31535 and 1361, that added together give a triangular number (32896 = T₂₅₆).

The spelling of 315351361 in words is "three hundred fifteen million, three hundred fifty-one thousand, three hundred sixty-one".