1317335853 has 4 divisors (see below), whose sum is σ = 1756447808. Its totient is φ = 878223900.

The previous prime is 1317335849. The next prime is 1317335891. The reversal of 1317335853 is 3585337131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1317335853 - 2² = 1317335849 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1317335813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219555973 + ... + 219555978.

It is an arithmetic number, because the mean of its divisors is an integer number (439111952).

Almost surely, 2^1317335853 is an apocalyptic number.

It is an amenable number.

1317335853 is a deficient number, since it is larger than the sum of its proper divisors (439111955).

1317335853 is an equidigital number, since it uses as much as digits as its factorization.

1317335853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439111954.

The product of its digits is 113400, while the sum is 39.

The square root of 1317335853 is about 36295.1216143437. The cubic root of 1317335853 is about 1096.2228169201. Note that the first 3 decimals are identical.

The spelling of 1317335853 in words is "one billion, three hundred seventeen million, three hundred thirty-five thousand, eight hundred fifty-three".