1313486279 has 16 divisors (see below), whose sum is σ = 1512806400. Its totient is φ = 1117121760.

The previous prime is 1313486269. The next prime is 1313486281. The reversal of 1313486279 is 9726843131.

It is a cyclic number.

It is not a de Polignac number, because 1313486279 - 2²⁸ = 1045050823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313486219) 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, 543584 + ... + 545994.

It is an arithmetic number, because the mean of its divisors is an integer number (94550400).

Almost surely, 2^1313486279 is an apocalyptic number.

1313486279 is a deficient number, since it is larger than the sum of its proper divisors (199320121).

1313486279 is a wasteful number, since it uses less digits than its factorization.

1313486279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2990.

The product of its digits is 217728, while the sum is 44.

The square root of 1313486279 is about 36242.0512526540. The cubic root of 1313486279 is about 1095.1539656871.

The spelling of 1313486279 in words is "one billion, three hundred thirteen million, four hundred eighty-six thousand, two hundred seventy-nine".