1317183925 has 12 divisors (see below), whose sum is σ = 1649482596. Its totient is φ = 1043312000.

The previous prime is 1317183859. The next prime is 1317184051. The reversal of 1317183925 is 5293817131.

It can be written as a sum of positive squares in 6 ways, for example, as 28804689 + 1288379236 = 5367^2 + 35894^2 .

It is not a de Polignac number, because 1317183925 - 2¹⁹ = 1316659637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 258304 + ... + 263353.

It is an arithmetic number, because the mean of its divisors is an integer number (137456883).

Almost surely, 2^1317183925 is an apocalyptic number.

It is an amenable number.

1317183925 is a deficient number, since it is larger than the sum of its proper divisors (332298671).

1317183925 is a wasteful number, since it uses less digits than its factorization.

1317183925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521768 (or 521763 counting only the distinct ones).

The product of its digits is 45360, while the sum is 40.

The square root of 1317183925 is about 36293.0286005453. The cubic root of 1317183925 is about 1096.1806729361.

The spelling of 1317183925 in words is "one billion, three hundred seventeen million, one hundred eighty-three thousand, nine hundred twenty-five".