1317142315 has 4 divisors (see below), whose sum is σ = 1580570784. Its totient is φ = 1053713848.

The previous prime is 1317142297. The next prime is 1317142319. The reversal of 1317142315 is 5132417131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5132417131 = 641 ⋅8006891.

It is a cyclic number.

It is not a de Polignac number, because 1317142315 - 2¹⁷ = 1317011243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1317142319) 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, 131714227 + ... + 131714236.

It is an arithmetic number, because the mean of its divisors is an integer number (395142696).

Almost surely, 2^1317142315 is an apocalyptic number.

1317142315 is a deficient number, since it is larger than the sum of its proper divisors (263428469).

1317142315 is an equidigital number, since it uses as much as digits as its factorization.

1317142315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263428468.

The product of its digits is 2520, while the sum is 28.

The square root of 1317142315 is about 36292.4553454296. The cubic root of 1317142315 is about 1096.1691299877.

Adding to 1317142315 its reverse (5132417131), we get a palindrome (6449559446).

The spelling of 1317142315 in words is "one billion, three hundred seventeen million, one hundred forty-two thousand, three hundred fifteen".