313246454849 has 4 divisors (see below), whose sum is σ = 313291462020. Its totient is φ = 313201447680.

The previous prime is 313246454749. The next prime is 313246454887. The reversal of 313246454849 is 948454642313.

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 255461506624 + 57784948225 = 505432^2 + 240385^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313246454849 is a prime.

It is a super-2 number, since 2×313246454849² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 313246454849.

It is not an unprimeable number, because it can be changed into a prime (313246454749) 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, 22493144 + ... + 22507065.

It is an arithmetic number, because the mean of its divisors is an integer number (78322865505).

Almost surely, 2^313246454849 is an apocalyptic number.

It is an amenable number.

313246454849 is a deficient number, since it is larger than the sum of its proper divisors (45007171).

313246454849 is an equidigital number, since it uses as much as digits as its factorization.

313246454849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45007170.

The product of its digits is 9953280, while the sum is 53.

The spelling of 313246454849 in words is "three hundred thirteen billion, two hundred forty-six million, four hundred fifty-four thousand, eight hundred forty-nine".