1317487117 has 2 divisors, whose sum is σ = 1317487118. Its totient is φ = 1317487116.

The previous prime is 1317487103. The next prime is 1317487121. The reversal of 1317487117 is 7117847131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 925011396 + 392475721 = 30414^2 + 19811^2 .

It is a cyclic number.

It is not a de Polignac number, because 1317487117 - 2¹⁵ = 1317454349 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1317487117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1317487177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 658743558 + 658743559.

It is an arithmetic number, because the mean of its divisors is an integer number (658743559).

Almost surely, 2^1317487117 is an apocalyptic number.

It is an amenable number.

1317487117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1317487117 is an equidigital number, since it uses as much as digits as its factorization.

1317487117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32928, while the sum is 40.

The square root of 1317487117 is about 36297.2053607437. The cubic root of 1317487117 is about 1096.2647734951.

The spelling of 1317487117 in words is "one billion, three hundred seventeen million, four hundred eighty-seven thousand, one hundred seventeen".