1317539529 has 24 divisors (see below), whose sum is σ = 1926459392. Its totient is φ = 867646080.

The previous prime is 1317539507. The next prime is 1317539537. The reversal of 1317539529 is 9259357131.

It is not a de Polignac number, because 1317539529 - 2²⁸ = 1049104073 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1317539539) 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 in 23 ways as a sum of consecutive naturals, for example, 273072 + ... + 277854.

Almost surely, 2^1317539529 is an apocalyptic number.

It is an amenable number.

1317539529 is a deficient number, since it is larger than the sum of its proper divisors (608919863).

1317539529 is a wasteful number, since it uses less digits than its factorization.

1317539529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5157 (or 5154 counting only the distinct ones).

The product of its digits is 255150, while the sum is 45.

The square root of 1317539529 is about 36297.9273375216. The cubic root of 1317539529 is about 1096.2793104285.

The spelling of 1317539529 in words is "one billion, three hundred seventeen million, five hundred thirty-nine thousand, five hundred twenty-nine".