12207256 has 16 divisors (see below), whose sum is σ = 23126040. Its totient is φ = 6040320.

The previous prime is 12207229. The next prime is 12207269. The reversal of 12207256 is 65270221.

It is a self number, because there is not a number n which added to its sum of digits gives 12207256.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7090 + ... + 8641.

Almost surely, 2^12207256 is an apocalyptic number.

It is an amenable number.

12207256 is a deficient number, since it is larger than the sum of its proper divisors (10918784).

12207256 is a wasteful number, since it uses less digits than its factorization.

12207256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15834 (or 15830 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 12207256 is about 3493.8883782972. Note that the first 3 decimals coincide. The cubic root of 12207256 is about 230.2533817526.

Adding to 12207256 its reverse (65270221), we get a palindrome (77477477).

The spelling of 12207256 in words is "twelve million, two hundred seven thousand, two hundred fifty-six".