1317768193 has 4 divisors (see below), whose sum is σ = 1506020800. Its totient is φ = 1129515588.

The previous prime is 1317768191. The next prime is 1317768211. The reversal of 1317768193 is 3918677131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1317768193 - 2¹ = 1317768191 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1317768191) 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, 94126293 + ... + 94126306.

It is an arithmetic number, because the mean of its divisors is an integer number (376505200).

Almost surely, 2^1317768193 is an apocalyptic number.

It is an amenable number.

1317768193 is a deficient number, since it is larger than the sum of its proper divisors (188252607).

1317768193 is an equidigital number, since it uses as much as digits as its factorization.

1317768193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188252606.

The product of its digits is 190512, while the sum is 46.

The square root of 1317768193 is about 36301.0770225898. The cubic root of 1317768193 is about 1096.3427279089.

The spelling of 1317768193 in words is "one billion, three hundred seventeen million, seven hundred sixty-eight thousand, one hundred ninety-three".