12295661 has 4 divisors (see below), whose sum is σ = 14052192. Its totient is φ = 10539132.

The previous prime is 12295637. The next prime is 12295667. The reversal of 12295661 is 16659221.

It is a happy number.

12295661 is digitally balanced in base 3, 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12295661 - 2⁶ = 12295597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12295667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 878255 + ... + 878268.

It is an arithmetic number, because the mean of its divisors is an integer number (3513048).

Almost surely, 2^12295661 is an apocalyptic number.

It is an amenable number.

12295661 is a deficient number, since it is larger than the sum of its proper divisors (1756531).

12295661 is an equidigital number, since it uses as much as digits as its factorization.

12295661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1756530.

The product of its digits is 6480, while the sum is 32.

The square root of 12295661 is about 3506.5169327981. The cubic root of 12295661 is about 230.8078773367.

The spelling of 12295661 in words is "twelve million, two hundred ninety-five thousand, six hundred sixty-one".