316022513 has 4 divisors (see below), whose sum is σ = 324563700. Its totient is φ = 307481328.

The previous prime is 316022489. The next prime is 316022533. The reversal of 316022513 is 315220613.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 315220613 = 17 ⋅18542389.

It can be written as a sum of positive squares in 2 ways, for example, as 282475249 + 33547264 = 16807^2 + 5792^2 .

It is a cyclic number.

It is not a de Polignac number, because 316022513 - 2²⁶ = 248913649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (316022533) 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, 4270538 + ... + 4270611.

It is an arithmetic number, because the mean of its divisors is an integer number (81140925).

Almost surely, 2^316022513 is an apocalyptic number.

It is an amenable number.

316022513 is a deficient number, since it is larger than the sum of its proper divisors (8541187).

316022513 is an equidigital number, since it uses as much as digits as its factorization.

316022513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8541186.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 316022513 is about 17777.0220509511. The cubic root of 316022513 is about 681.1446357488.

The spelling of 316022513 in words is "three hundred sixteen million, twenty-two thousand, five hundred thirteen".