1317238199 has 2 divisors, whose sum is σ = 1317238200. Its totient is φ = 1317238198.

The previous prime is 1317238193. The next prime is 1317238253. The reversal of 1317238199 is 9918327131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1317238199 - 2²⁴ = 1300460983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1317238193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 658619099 + 658619100.

It is an arithmetic number, because the mean of its divisors is an integer number (658619100).

Almost surely, 2^1317238199 is an apocalyptic number.

1317238199 is a deficient number, since it is larger than the sum of its proper divisors (1).

1317238199 is an equidigital number, since it uses as much as digits as its factorization.

1317238199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81648, while the sum is 44.

The square root of 1317238199 is about 36293.7763121999. The cubic root of 1317238199 is about 1096.1957286145.

The spelling of 1317238199 in words is "one billion, three hundred seventeen million, two hundred thirty-eight thousand, one hundred ninety-nine".