1317268159 has 4 divisors (see below), whose sum is σ = 1330310520. Its totient is φ = 1304225800.

The previous prime is 1317268129. The next prime is 1317268177. The reversal of 1317268159 is 9518627131.

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 1317268159 - 2¹⁵ = 1317235391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1317268129) 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, 6521029 + ... + 6521230.

It is an arithmetic number, because the mean of its divisors is an integer number (332577630).

Almost surely, 2^1317268159 is an apocalyptic number.

1317268159 is a deficient number, since it is larger than the sum of its proper divisors (13042361).

1317268159 is a wasteful number, since it uses less digits than its factorization.

1317268159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13042360.

The product of its digits is 90720, while the sum is 43.

The square root of 1317268159 is about 36294.1890527947. The cubic root of 1317268159 is about 1096.2040393804.

The spelling of 1317268159 in words is "one billion, three hundred seventeen million, two hundred sixty-eight thousand, one hundred fifty-nine".