315245313 has 24 divisors (see below), whose sum is σ = 463881600. Its totient is φ = 206260704.

The previous prime is 315245299. The next prime is 315245353. The reversal of 315245313 is 313542513.

It is not a de Polignac number, because 315245313 - 2¹⁰ = 315244289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (315245353) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 126031 + ... + 128507.

It is an arithmetic number, because the mean of its divisors is an integer number (19328400).

Almost surely, 2^315245313 is an apocalyptic number.

It is an amenable number.

315245313 is a deficient number, since it is larger than the sum of its proper divisors (148636287).

315245313 is a wasteful number, since it uses less digits than its factorization.

315245313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2741 (or 2738 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 315245313 is about 17755.1489151739. The cubic root of 315245313 is about 680.5857935155.

Adding to 315245313 its reverse (313542513), we get a palindrome (628787826).

The spelling of 315245313 in words is "three hundred fifteen million, two hundred forty-five thousand, three hundred thirteen".