1313040015 has 96 divisors (see below), whose sum is σ = 2684572800. Its totient is φ = 593381376.

The previous prime is 1313040007. The next prime is 1313040037. The reversal of 1313040015 is 5100403131.

1313040015 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1313040015 - 2³ = 1313040007 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1313040015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1496757 + ... + 1497633.

It is an arithmetic number, because the mean of its divisors is an integer number (27964300).

Almost surely, 2^1313040015 is an apocalyptic number.

1313040015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1313040015 is an abundant number, since it is smaller than the sum of its proper divisors (1371532785).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1313040015 is an equidigital number, since it uses as much as digits as its factorization.

1313040015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006 (or 989 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 1313040015 is about 36235.8940140850. The cubic root of 1313040015 is about 1095.0299234958.

Adding to 1313040015 its reverse (5100403131), we get a palindrome (6413443146).

The spelling of 1313040015 in words is "one billion, three hundred thirteen million, forty thousand, fifteen".