12295681 has 4 divisors (see below), whose sum is σ = 12719700. Its totient is φ = 11871664.

The previous prime is 12295669. The next prime is 12295687. The reversal of 12295681 is 18659221.

12295681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 5452225 + 6843456 = 2335^2 + 2616^2 .

It is a cyclic number.

It is not a de Polignac number, because 12295681 - 2⁹ = 12295169 is a prime.

It is a super-2 number, since 2×12295681² = 302367542507522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12295687) 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, 211966 + ... + 212023.

It is an arithmetic number, because the mean of its divisors is an integer number (3179925).

Almost surely, 2^12295681 is an apocalyptic number.

It is an amenable number.

12295681 is a deficient number, since it is larger than the sum of its proper divisors (424019).

12295681 is an equidigital number, since it uses as much as digits as its factorization.

12295681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424018.

The product of its digits is 8640, while the sum is 34.

The square root of 12295681 is about 3506.5197846298. The cubic root of 12295681 is about 230.8080024799.

The spelling of 12295681 in words is "twelve million, two hundred ninety-five thousand, six hundred eighty-one".