It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is a d-powerful number, because it can be written as 1 + 38 + 43 + 44 + 38 .
It is a D-number.
13443 is a lucky number.
It is a nialpdrome in base 11.
213443 is an apocalyptic number.
13443 is an equidigital number, since it uses as much as digits as its factorization.
13443 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4484.
The square root of 13443 is about 115.9439519768. The cubic root of 13443 is about 23.7774567038. Note that the first 3 decimals are identical.
Adding to 13443 its reverse (34431), we get a palindrome (47874).
The spelling of 13443 in words is "thirteen thousand, four hundred forty-three".