12256249 has 4 divisors (see below), whose sum is σ = 12377700. Its totient is φ = 12134800.

The previous prime is 12256207. The next prime is 12256271. The reversal of 12256249 is 94265221.

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 7327849 + 4928400 = 2707^2 + 2220^2 .

It is a cyclic number.

It is not a de Polignac number, because 12256249 - 2¹¹ = 12254201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12256249.

It is not an unprimeable number, because it can be changed into a prime (12256549) 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, 60574 + ... + 60775.

It is an arithmetic number, because the mean of its divisors is an integer number (3094425).

Almost surely, 2^12256249 is an apocalyptic number.

It is an amenable number.

12256249 is a deficient number, since it is larger than the sum of its proper divisors (121451).

12256249 is a wasteful number, since it uses less digits than its factorization.

12256249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121450.

The product of its digits is 8640, while the sum is 31.

The square root of 12256249 is about 3500.8926004663. The cubic root of 12256249 is about 230.5610060571.

The spelling of 12256249 in words is "twelve million, two hundred fifty-six thousand, two hundred forty-nine".