1317488633 has 12 divisors (see below), whose sum is σ = 1392242580. Its totient is φ = 1246565376.

The previous prime is 1317488621. The next prime is 1317488639. The reversal of 1317488633 is 3368847131.

It can be written as a sum of positive squares in 2 ways, for example, as 137428729 + 1180059904 = 11723^2 + 34352^2 .

It is not a de Polignac number, because 1317488633 - 2⁶ = 1317488569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1317488639) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 362441 + ... + 366057.

It is an arithmetic number, because the mean of its divisors is an integer number (116020215).

Almost surely, 2^1317488633 is an apocalyptic number.

It is an amenable number.

1317488633 is a deficient number, since it is larger than the sum of its proper divisors (74753947).

1317488633 is a wasteful number, since it uses less digits than its factorization.

1317488633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4664 (or 4645 counting only the distinct ones).

The product of its digits is 290304, while the sum is 44.

The square root of 1317488633 is about 36297.2262438881. The cubic root of 1317488633 is about 1096.2651939766.

The spelling of 1317488633 in words is "one billion, three hundred seventeen million, four hundred eighty-eight thousand, six hundred thirty-three".