12268657 has 4 divisors (see below), whose sum is σ = 12395236. Its totient is φ = 12142080.

The previous prime is 12268649. The next prime is 12268667. The reversal of 12268657 is 75686221.

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 3748096 + 8520561 = 1936^2 + 2919^2 .

It is a cyclic number.

It is not a de Polignac number, because 12268657 - 2³ = 12268649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12268667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63144 + ... + 63337.

It is an arithmetic number, because the mean of its divisors is an integer number (3098809).

Almost surely, 2^12268657 is an apocalyptic number.

It is an amenable number.

12268657 is a deficient number, since it is larger than the sum of its proper divisors (126579).

12268657 is an equidigital number, since it uses as much as digits as its factorization.

12268657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126578.

The product of its digits is 40320, while the sum is 37.

The square root of 12268657 is about 3502.6642716652. The cubic root of 12268657 is about 230.6387850496.

The spelling of 12268657 in words is "twelve million, two hundred sixty-eight thousand, six hundred fifty-seven".