1316239863 has 4 divisors (see below), whose sum is σ = 1754986488. Its totient is φ = 877493240.

The previous prime is 1316239843. The next prime is 1316239867. The reversal of 1316239863 is 3689326131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1316239863 - 2⁵ = 1316239831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1316239867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219373308 + ... + 219373313.

It is an arithmetic number, because the mean of its divisors is an integer number (438746622).

Almost surely, 2^1316239863 is an apocalyptic number.

1316239863 is a deficient number, since it is larger than the sum of its proper divisors (438746625).

1316239863 is an equidigital number, since it uses as much as digits as its factorization.

1316239863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438746624.

The product of its digits is 139968, while the sum is 42.

The square root of 1316239863 is about 36280.0201626184. The cubic root of 1316239863 is about 1095.9187227165.

The spelling of 1316239863 in words is "one billion, three hundred sixteen million, two hundred thirty-nine thousand, eight hundred sixty-three".