1317342079 has 2 divisors, whose sum is σ = 1317342080. Its totient is φ = 1317342078.

The previous prime is 1317342041. The next prime is 1317342097. The reversal of 1317342079 is 9702437131.

It is a happy number.

Together with next prime (1317342097) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1317342079 - 2²⁵ = 1283787647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1317342379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 658671039 + 658671040.

It is an arithmetic number, because the mean of its divisors is an integer number (658671040).

Almost surely, 2^1317342079 is an apocalyptic number.

1317342079 is a deficient number, since it is larger than the sum of its proper divisors (1).

1317342079 is an equidigital number, since it uses as much as digits as its factorization.

1317342079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 1317342079 is about 36295.2073833447. The cubic root of 1317342079 is about 1096.2245439088.

It can be divided in two parts, 1317 and 342079, that added together give a square (343396 = 586²).

The spelling of 1317342079 in words is "one billion, three hundred seventeen million, three hundred forty-two thousand, seventy-nine".