1317048905 has 8 divisors (see below), whose sum is σ = 1673426952. Its totient is φ = 991660288.

The previous prime is 1317048893. The next prime is 1317048913. The reversal of 1317048905 is 5098407131.

It can be written as a sum of positive squares in 4 ways, for example, as 51681721 + 1265367184 = 7189^2 + 35572^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1317048905 - 2⁶ = 1317048841 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7747262 + ... + 7747431.

It is an arithmetic number, because the mean of its divisors is an integer number (209178369).

Almost surely, 2^1317048905 is an apocalyptic number.

It is an amenable number.

1317048905 is a deficient number, since it is larger than the sum of its proper divisors (356378047).

1317048905 is a wasteful number, since it uses less digits than its factorization.

1317048905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15494715.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 1317048905 is about 36291.1684160210. The cubic root of 1317048905 is about 1096.1432164177.

The spelling of 1317048905 in words is "one billion, three hundred seventeen million, forty-eight thousand, nine hundred five".