1313541879 has 8 divisors (see below), whose sum is σ = 1886111472. Its totient is φ = 808333440.

The previous prime is 1313541871. The next prime is 1313541881. The reversal of 1313541879 is 9781453131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1313541879 - 2³ = 1313541871 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1313541879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313541871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16840242 + ... + 16840319.

It is an arithmetic number, because the mean of its divisors is an integer number (235763934).

Almost surely, 2^1313541879 is an apocalyptic number.

1313541879 is a deficient number, since it is larger than the sum of its proper divisors (572569593).

1313541879 is a wasteful number, since it uses less digits than its factorization.

1313541879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33680577.

The product of its digits is 90720, while the sum is 42.

The square root of 1313541879 is about 36242.8183092872. The cubic root of 1313541879 is about 1095.1694181265.

The spelling of 1313541879 in words is "one billion, three hundred thirteen million, five hundred forty-one thousand, eight hundred seventy-nine".