12455543 has 8 divisors (see below), whose sum is σ = 13229568. Its totient is φ = 11686144.

The previous prime is 12455533. The next prime is 12455563. The reversal of 12455543 is 34555421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12455543 - 2¹² = 12451447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12455503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5555 + ... + 7467.

It is an arithmetic number, because the mean of its divisors is an integer number (1653696).

Almost surely, 2^12455543 is an apocalyptic number.

12455543 is a deficient number, since it is larger than the sum of its proper divisors (774025).

12455543 is a wasteful number, since it uses less digits than its factorization.

12455543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2313.

The product of its digits is 12000, while the sum is 29.

The square root of 12455543 is about 3529.2411365618. The cubic root of 12455543 is about 231.8039800371.

The spelling of 12455543 in words is "twelve million, four hundred fifty-five thousand, five hundred forty-three".