1313663179 has 4 divisors (see below), whose sum is σ = 1313738776. Its totient is φ = 1313587584.

The previous prime is 1313663159. The next prime is 1313663189. The reversal of 1313663179 is 9713663131.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1313663179 - 2¹³ = 1313654987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1313663159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2812 + ... + 51334.

It is an arithmetic number, because the mean of its divisors is an integer number (328434694).

Almost surely, 2^1313663179 is an apocalyptic number.

1313663179 is a deficient number, since it is larger than the sum of its proper divisors (75597).

1313663179 is an equidigital number, since it uses as much as digits as its factorization.

1313663179 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75596.

The product of its digits is 61236, while the sum is 40.

The square root of 1313663179 is about 36244.4917056371. The cubic root of 1313663179 is about 1095.2031284999.

The spelling of 1313663179 in words is "one billion, three hundred thirteen million, six hundred sixty-three thousand, one hundred seventy-nine".