12856043 has 4 divisors (see below), whose sum is σ = 12884040. Its totient is φ = 12828048.

The previous prime is 12856037. The next prime is 12856069. The reversal of 12856043 is 34065821.

12856043 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12856043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12855997 and 12856015.

It is not an unprimeable number, because it can be changed into a prime (12856013) 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, 13298 + ... + 14231.

It is an arithmetic number, because the mean of its divisors is an integer number (3221010).

Almost surely, 2^12856043 is an apocalyptic number.

12856043 is a deficient number, since it is larger than the sum of its proper divisors (27997).

12856043 is an equidigital number, since it uses as much as digits as its factorization.

12856043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27996.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 12856043 is about 3585.5324569720. The cubic root of 12856043 is about 234.2623193581.

The spelling of 12856043 in words is "twelve million, eight hundred fifty-six thousand, forty-three".