12443 has 4 divisors (see below), whose sum is σ = 13008. Its totient is φ = 11880.

The previous prime is 12437. The next prime is 12451. The reversal of 12443 is 34421.

12443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12443 - 2⁶ = 12379 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 6.

It is not an unprimeable number, because it can be changed into a prime (12413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248 + ... + 293.

It is an arithmetic number, because the mean of its divisors is an integer number (3252).

2¹²⁴⁴³ is an apocalyptic number.

12443 is a deficient number, since it is larger than the sum of its proper divisors (565).

12443 is an equidigital number, since it uses as much as digits as its factorization.

12443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564.

The product of its digits is 96, while the sum is 14.

The square root of 12443 is about 111.5481958617. The cubic root of 12443 is about 23.1726143370.

Adding to 12443 its reverse (34421), we get a palindrome (46864).

The spelling of 12443 in words is "twelve thousand, four hundred forty-three", and thus it is an iban number.