2015747313 has 4 divisors (see below), whose sum is σ = 2687663088. Its totient is φ = 1343831540.

The previous prime is 2015747311. The next prime is 2015747323. The reversal of 2015747313 is 3137475102.

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 not a de Polignac number, because 2015747313 - 2¹ = 2015747311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2015747311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335957883 + ... + 335957888.

It is an arithmetic number, because the mean of its divisors is an integer number (671915772).

Almost surely, 2^2015747313 is an apocalyptic number.

It is an amenable number.

2015747313 is a deficient number, since it is larger than the sum of its proper divisors (671915775).

2015747313 is an equidigital number, since it uses as much as digits as its factorization.

2015747313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671915774.

The product of its (nonzero) digits is 17640, while the sum is 33.

The square root of 2015747313 is about 44897.0746597147. The cubic root of 2015747313 is about 1263.2191374993.

The spelling of 2015747313 in words is "two billion, fifteen million, seven hundred forty-seven thousand, three hundred thirteen".