2731296313 has 4 divisors (see below), whose sum is σ = 2891960820. Its totient is φ = 2570631808.

The previous prime is 2731296301. The next prime is 2731296319. The reversal of 2731296313 is 3136921372.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2520843264 + 210453049 = 50208^2 + 14507^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2731296313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2731296319) 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, 80332228 + ... + 80332261.

It is an arithmetic number, because the mean of its divisors is an integer number (722990205).

Almost surely, 2^2731296313 is an apocalyptic number.

It is an amenable number.

2731296313 is a deficient number, since it is larger than the sum of its proper divisors (160664507).

2731296313 is a wasteful number, since it uses less digits than its factorization.

2731296313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160664506.

The product of its digits is 40824, while the sum is 37.

The square root of 2731296313 is about 52261.8054892863. The cubic root of 2731296313 is about 1397.8361663251.

The spelling of 2731296313 in words is "two billion, seven hundred thirty-one million, two hundred ninety-six thousand, three hundred thirteen".