12855203 has 4 divisors (see below), whose sum is σ = 13097808. Its totient is φ = 12612600.

The previous prime is 12855187. The next prime is 12855211. The reversal of 12855203 is 30255821.

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 12855203 - 2⁴ = 12855187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12855233) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 121223 + ... + 121328.

It is an arithmetic number, because the mean of its divisors is an integer number (3274452).

Almost surely, 2^12855203 is an apocalyptic number.

12855203 is a deficient number, since it is larger than the sum of its proper divisors (242605).

12855203 is an equidigital number, since it uses as much as digits as its factorization.

12855203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242604.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 12855203 is about 3585.4153176445. The cubic root of 12855203 is about 234.2572170978.

The spelling of 12855203 in words is "twelve million, eight hundred fifty-five thousand, two hundred three".