315012013 has 2 divisors, whose sum is σ = 315012014. Its totient is φ = 315012012.

The previous prime is 315012011. The next prime is 315012017. The reversal of 315012013 is 310210513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 271689289 + 43322724 = 16483^2 + 6582^2 .

It is a cyclic number.

It is not a de Polignac number, because 315012013 - 2¹ = 315012011 is a prime.

Together with 315012011, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315012011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157506006 + 157506007.

It is an arithmetic number, because the mean of its divisors is an integer number (157506007).

Almost surely, 2^315012013 is an apocalyptic number.

It is an amenable number.

315012013 is a deficient number, since it is larger than the sum of its proper divisors (1).

315012013 is an equidigital number, since it uses as much as digits as its factorization.

315012013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 315012013 is about 17748.5777740077. The cubic root of 315012013 is about 680.4178609625.

Adding to 315012013 its reverse (310210513), we get a palindrome (625222526).

The spelling of 315012013 in words is "three hundred fifteen million, twelve thousand, thirteen".