12855043 has 4 divisors (see below), whose sum is σ = 13611240. Its totient is φ = 12098848.

The previous prime is 12855041. The next prime is 12855053. The reversal of 12855043 is 34055821.

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

It is a cyclic number.

It is not a de Polignac number, because 12855043 - 2¹ = 12855041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12855041) 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, 378073 + ... + 378106.

It is an arithmetic number, because the mean of its divisors is an integer number (3402810).

Almost surely, 2^12855043 is an apocalyptic number.

12855043 is a deficient number, since it is larger than the sum of its proper divisors (756197).

12855043 is an equidigital number, since it uses as much as digits as its factorization.

12855043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756196.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 12855043 is about 3585.3930049578. The cubic root of 12855043 is about 234.2562452135.

It can be divided in two parts, 1285 and 5043, that added together give a triangular number (6328 = T₁₁₂).

The spelling of 12855043 in words is "twelve million, eight hundred fifty-five thousand, forty-three".