1317325605 has 16 divisors (see below), whose sum is σ = 2112884160. Its totient is φ = 700852608.

The previous prime is 1317325589. The next prime is 1317325643. The reversal of 1317325605 is 5065237131.

It is not a de Polignac number, because 1317325605 - 2⁴ = 1317325589 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101227 + ... + 113496.

It is an arithmetic number, because the mean of its divisors is an integer number (132055260).

Almost surely, 2^1317325605 is an apocalyptic number.

1317325605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1317325605 is a deficient number, since it is larger than the sum of its proper divisors (795558555).

1317325605 is a wasteful number, since it uses less digits than its factorization.

1317325605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215140.

The product of its (nonzero) digits is 18900, while the sum is 33.

The square root of 1317325605 is about 36294.9804380716. The cubic root of 1317325605 is about 1096.2199742837.

The spelling of 1317325605 in words is "one billion, three hundred seventeen million, three hundred twenty-five thousand, six hundred five".