12255543 has 10 divisors (see below), whose sum is σ = 18307784. Its totient is φ = 8170308.

The previous prime is 12255533. The next prime is 12255587. The reversal of 12255543 is 34555221.

It is a happy number.

12255543 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12255543 - 2⁵ = 12255511 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12255533) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 75571 + ... + 75732.

Almost surely, 2^12255543 is an apocalyptic number.

12255543 is a deficient number, since it is larger than the sum of its proper divisors (6052241).

12255543 is an equidigital number, since it uses as much as digits as its factorization.

12255543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151315 (or 151306 counting only the distinct ones).

The product of its digits is 6000, while the sum is 27.

The square root of 12255543 is about 3500.7917675863. The cubic root of 12255543 is about 230.5565789496.

The spelling of 12255543 in words is "twelve million, two hundred fifty-five thousand, five hundred forty-three".