1315513587 has 16 divisors (see below), whose sum is σ = 1776097440. Its totient is φ = 866016000.

The previous prime is 1315513571. The next prime is 1315513603. The reversal of 1315513587 is 7853155131.

1315513587 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1315513571) and next prime (1315513603).

It is not a de Polignac number, because 1315513587 - 2⁴ = 1315513571 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1315513547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112287 + ... + 123447.

It is an arithmetic number, because the mean of its divisors is an integer number (111006090).

Almost surely, 2^1315513587 is an apocalyptic number.

1315513587 is a deficient number, since it is larger than the sum of its proper divisors (460583853).

1315513587 is a wasteful number, since it uses less digits than its factorization.

1315513587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11654.

The product of its digits is 63000, while the sum is 39.

The square root of 1315513587 is about 36270.0094706357. The cubic root of 1315513587 is about 1095.7171166293.

The spelling of 1315513587 in words is "one billion, three hundred fifteen million, five hundred thirteen thousand, five hundred eighty-seven".