12856249 has 16 divisors (see below), whose sum is σ = 15084160. Its totient is φ = 10730880.

The previous prime is 12856237. The next prime is 12856253. The reversal of 12856249 is 94265821.

12856249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12856249 - 2¹³ = 12848057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12856219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70939 + ... + 71119.

It is an arithmetic number, because the mean of its divisors is an integer number (942760).

Almost surely, 2^12856249 is an apocalyptic number.

It is an amenable number.

12856249 is a deficient number, since it is larger than the sum of its proper divisors (2227911).

12856249 is a wasteful number, since it uses less digits than its factorization.

12856249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400.

The product of its digits is 34560, while the sum is 37.

The square root of 12856249 is about 3585.5611834133. The cubic root of 12856249 is about 234.2635705928.

The spelling of 12856249 in words is "twelve million, eight hundred fifty-six thousand, two hundred forty-nine".