1317544193 has 6 divisors (see below), whose sum is σ = 1532653506. Its totient is φ = 1129323552.

The previous prime is 1317544187. The next prime is 1317544201. The reversal of 1317544193 is 3914457131.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1114424689 + 203119504 = 33383^2 + 14252^2 .

It is not a de Polignac number, because 1317544193 - 2⁴ = 1317544177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1317544103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13444280 + ... + 13444377.

It is an arithmetic number, because the mean of its divisors is an integer number (255442251).

Almost surely, 2^1317544193 is an apocalyptic number.

It is an amenable number.

1317544193 is a deficient number, since it is larger than the sum of its proper divisors (215109313).

1317544193 is an equidigital number, since it uses as much as digits as its factorization.

1317544193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26888671 (or 26888664 counting only the distinct ones).

The product of its digits is 45360, while the sum is 38.

The square root of 1317544193 is about 36297.9915835573. The cubic root of 1317544193 is about 1096.2806040116.

The spelling of 1317544193 in words is "one billion, three hundred seventeen million, five hundred forty-four thousand, one hundred ninety-three".