1317629318 has 8 divisors (see below), whose sum is σ = 1992006912. Its totient is φ = 653627016.

The previous prime is 1317629293. The next prime is 1317629389. The reversal of 1317629318 is 8139267131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1317629318² = 3472294039306290248, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2593505 + ... + 2594012.

It is an arithmetic number, because the mean of its divisors is an integer number (249000864).

Almost surely, 2^1317629318 is an apocalyptic number.

1317629318 is a deficient number, since it is larger than the sum of its proper divisors (674377594).

1317629318 is a wasteful number, since it uses less digits than its factorization.

1317629318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5187646.

The product of its digits is 54432, while the sum is 41.

The square root of 1317629318 is about 36299.1641501564. The cubic root of 1317629318 is about 1096.3042133087.

The spelling of 1317629318 in words is "one billion, three hundred seventeen million, six hundred twenty-nine thousand, three hundred eighteen".