1317181429 has 2 divisors, whose sum is σ = 1317181430. Its totient is φ = 1317181428.

The previous prime is 1317181417. The next prime is 1317181433. The reversal of 1317181429 is 9241817131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1301261329 + 15920100 = 36073^2 + 3990^2 .

It is an emirp because it is prime and its reverse (9241817131) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1317181429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1317181829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 658590714 + 658590715.

It is an arithmetic number, because the mean of its divisors is an integer number (658590715).

Almost surely, 2^1317181429 is an apocalyptic number.

It is an amenable number.

1317181429 is a deficient number, since it is larger than the sum of its proper divisors (1).

1317181429 is an equidigital number, since it uses as much as digits as its factorization.

1317181429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 37.

The square root of 1317181429 is about 36292.9942137598. The cubic root of 1317181429 is about 1096.1799805325.

The spelling of 1317181429 in words is "one billion, three hundred seventeen million, one hundred eighty-one thousand, four hundred twenty-nine".