Adding to 4543 its reverse (3454), we get a palindrome (7997).
Subtracting from 4543 its reverse (3454), we obtain a square (1089 = 332).
4543 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-4543 is a prime.
It is an alternating number because its digits alternate between even and odd.
It is a Duffinian number.
It is a plaindrome in base 16.
It is a congruent number.
24543 is an apocalyptic number.
4543 is a wasteful number, since it uses less digits than its factorization.
4543 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 77.
The square root of 4543 is about 67.4017803919. The cubic root of 4543 is about 16.5620558799.
The spelling of 4543 in words is "four thousand, five hundred forty-three".