1313215015 has 64 divisors (see below), whose sum is σ = 1954160640. Its totient is φ = 827735040.

The previous prime is 1313214983. The next prime is 1313215037. The reversal of 1313215015 is 5105123131.

It is not a de Polignac number, because 1313215015 - 2⁵ = 1313214983 is a prime.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 2307651 + ... + 2308219.

It is an arithmetic number, because the mean of its divisors is an integer number (30533760).

Almost surely, 2^1313215015 is an apocalyptic number.

1313215015 is a deficient number, since it is larger than the sum of its proper divisors (640945625).

1313215015 is a wasteful number, since it uses less digits than its factorization.

1313215015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 1313215015 is about 36238.3086663823. The cubic root of 1313215015 is about 1095.0785693156.

Adding to 1313215015 its reverse (5105123131), we get a palindrome (6418338146).

The spelling of 1313215015 in words is "one billion, three hundred thirteen million, two hundred fifteen thousand, fifteen".