12295813 has 4 divisors (see below), whose sum is σ = 12304108. Its totient is φ = 12287520.

The previous prime is 12295781. The next prime is 12295819. The reversal of 12295813 is 31859221.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 5654884 + 6640929 = 2378^2 + 2577^2 .

It is a cyclic number.

It is not a de Polignac number, because 12295813 - 2⁵ = 12295781 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 (12295819) 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, 1248 + ... + 5113.

It is an arithmetic number, because the mean of its divisors is an integer number (3076027).

Almost surely, 2^12295813 is an apocalyptic number.

It is an amenable number.

12295813 is a deficient number, since it is larger than the sum of its proper divisors (8295).

12295813 is an equidigital number, since it uses as much as digits as its factorization.

12295813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8294.

The product of its digits is 4320, while the sum is 31.

The square root of 12295813 is about 3506.5386066604. The cubic root of 12295813 is about 230.8088284216.

The spelling of 12295813 in words is "twelve million, two hundred ninety-five thousand, eight hundred thirteen".