12255243 has 72 divisors (see below), whose sum is σ = 22924944. Its totient is φ = 5765760.

The previous prime is 12255227. The next prime is 12255259. The reversal of 12255243 is 34255221.

It is an interprime number because it is at equal distance from previous prime (12255227) and next prime (12255259).

It is not a de Polignac number, because 12255243 - 2⁴ = 12255227 is a prime.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (12255143) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 231205 + ... + 231257.

It is an arithmetic number, because the mean of its divisors is an integer number (318402).

Almost surely, 2^12255243 is an apocalyptic number.

12255243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12255243 is a deficient number, since it is larger than the sum of its proper divisors (10669701).

12255243 is a wasteful number, since it uses less digits than its factorization.

12255243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105 (or 87 counting only the distinct ones).

The product of its digits is 2400, while the sum is 24.

The square root of 12255243 is about 3500.7489198741. The cubic root of 12255243 is about 230.5546976909.

It can be divided in two parts, 12 and 255243, that added together give a triangular number (255255 = T₇₁₄).

The spelling of 12255243 in words is "twelve million, two hundred fifty-five thousand, two hundred forty-three".