1313507868 has 24 divisors (see below), whose sum is σ = 3101779968. Its totient is φ = 432560496.

The previous prime is 1313507837. The next prime is 1313507869. The reversal of 1313507868 is 8687053131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313507869) 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 7 ways as a sum of consecutive naturals, for example, 658396 + ... + 660387.

It is an arithmetic number, because the mean of its divisors is an integer number (129240832).

Almost surely, 2^1313507868 is an apocalyptic number.

It is an amenable number.

1313507868 is an abundant number, since it is smaller than the sum of its proper divisors (1788272100).

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

1313507868 is a wasteful number, since it uses less digits than its factorization.

1313507868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1318873 (or 1318871 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 1313507868 is about 36242.3490960506. The cubic root of 1313507868 is about 1095.1599657877.

The spelling of 1313507868 in words is "one billion, three hundred thirteen million, five hundred seven thousand, eight hundred sixty-eight".