315012613 has 4 divisors (see below), whose sum is σ = 316772640. Its totient is φ = 313252588.

The previous prime is 315012569. The next prime is 315012673. The reversal of 315012613 is 316210513.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315012613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315012673) 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, 879745 + ... + 880102.

It is an arithmetic number, because the mean of its divisors is an integer number (79193160).

Almost surely, 2^315012613 is an apocalyptic number.

It is an amenable number.

315012613 is a deficient number, since it is larger than the sum of its proper divisors (1760027).

315012613 is a wasteful number, since it uses less digits than its factorization.

315012613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1760026.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 315012613 is about 17748.5946767624. The cubic root of 315012613 is about 680.4182929571.

The spelling of 315012613 in words is "three hundred fifteen million, twelve thousand, six hundred thirteen".