1317423617 has 2 divisors, whose sum is σ = 1317423618. Its totient is φ = 1317423616.

The previous prime is 1317423607. The next prime is 1317423631. The reversal of 1317423617 is 7163247131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1070336656 + 247086961 = 32716^2 + 15719^2 .

It is a cyclic number.

It is not a de Polignac number, because 1317423617 - 2⁶ = 1317423553 is a prime.

It is not a weakly prime, because it can be changed into another prime (1317423607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 658711808 + 658711809.

It is an arithmetic number, because the mean of its divisors is an integer number (658711809).

Almost surely, 2^1317423617 is an apocalyptic number.

It is an amenable number.

1317423617 is a deficient number, since it is larger than the sum of its proper divisors (1).

1317423617 is an equidigital number, since it uses as much as digits as its factorization.

1317423617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21168, while the sum is 35.

The square root of 1317423617 is about 36296.3306272135. The cubic root of 1317423617 is about 1096.2471606900.

The spelling of 1317423617 in words is "one billion, three hundred seventeen million, four hundred twenty-three thousand, six hundred seventeen".