1317814308 has 18 divisors (see below), whose sum is σ = 3331141814. Its totient is φ = 439271424.

The previous prime is 1317814301. The next prime is 1317814319. The reversal of 1317814308 is 8034187131.

It can be written as a sum of positive squares in only one way, i.e., 1142304804 + 175509504 = 33798^2 + 13248^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 36605953 = 1317814308 / (1 + 3 + 1 + 7 + 8 + 1 + 4 + 3 + 0 + 8).

It is not an unprimeable number, because it can be changed into a prime (1317814301) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18302941 + ... + 18303012.

Almost surely, 2^1317814308 is an apocalyptic number.

1317814308 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1317814308 is an abundant number, since it is smaller than the sum of its proper divisors (2013327506).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1317814308 is a wasteful number, since it uses less digits than its factorization.

1317814308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36605963 (or 36605958 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 1317814308 is about 36301.7121910248. The cubic root of 1317814308 is about 1096.3555165150.

The spelling of 1317814308 in words is "one billion, three hundred seventeen million, eight hundred fourteen thousand, three hundred eight".