1317539929 has 2 divisors, whose sum is σ = 1317539930. Its totient is φ = 1317539928.

The previous prime is 1317539917. The next prime is 1317539939. The reversal of 1317539929 is 9299357131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1039417600 + 278122329 = 32240^2 + 16677^2 .

It is a cyclic number.

It is not a de Polignac number, because 1317539929 - 2⁹ = 1317539417 is a prime.

It is a super-2 number, since 2×1317539929² = 3471822929018650082, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1317539939) 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, 658769964 + 658769965.

It is an arithmetic number, because the mean of its divisors is an integer number (658769965).

Almost surely, 2^1317539929 is an apocalyptic number.

It is an amenable number.

1317539929 is a deficient number, since it is larger than the sum of its proper divisors (1).

1317539929 is an equidigital number, since it uses as much as digits as its factorization.

1317539929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 459270, while the sum is 49.

The square root of 1317539929 is about 36297.9328474777. The cubic root of 1317539929 is about 1096.2794213706.

The spelling of 1317539929 in words is "one billion, three hundred seventeen million, five hundred thirty-nine thousand, nine hundred twenty-nine".