12256865 has 8 divisors (see below), whose sum is σ = 14774400. Its totient is φ = 9761392.

The previous prime is 12256831. The next prime is 12256883. The reversal of 12256865 is 56865221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12256865 - 2¹² = 12252769 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4265 + ... + 6534.

It is an arithmetic number, because the mean of its divisors is an integer number (1846800).

Almost surely, 2^12256865 is an apocalyptic number.

It is an amenable number.

12256865 is a deficient number, since it is larger than the sum of its proper divisors (2517535).

12256865 is a wasteful number, since it uses less digits than its factorization.

12256865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11031.

The product of its digits is 28800, while the sum is 35.

The square root of 12256865 is about 3500.9805769241. The cubic root of 12256865 is about 230.5648686635.

The spelling of 12256865 in words is "twelve million, two hundred fifty-six thousand, eight hundred sixty-five".