12268521 has 12 divisors (see below), whose sum is σ = 17832048. Its totient is φ = 8127864.

The previous prime is 12268489. The next prime is 12268541. The reversal of 12268521 is 12586221.

It is a happy number.

It is not a de Polignac number, because 12268521 - 2⁵ = 12268489 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12268541) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2715 + ... + 5648.

It is an arithmetic number, because the mean of its divisors is an integer number (1486004).

Almost surely, 2^12268521 is an apocalyptic number.

It is an amenable number.

12268521 is a deficient number, since it is larger than the sum of its proper divisors (5563527).

12268521 is a wasteful number, since it uses less digits than its factorization.

12268521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8532 (or 8529 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 12268521 is about 3502.6448578182. The cubic root of 12268521 is about 230.6379328240.

The spelling of 12268521 in words is "twelve million, two hundred sixty-eight thousand, five hundred twenty-one".