4543 has 8 divisors (see below), whose sum is σ = 5760. Its totient is φ = 3480.

The previous prime is 4523. The next prime is 4547. The reversal of 4543 is 3454.

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 2^k-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.

It is not an unprimeable number, because it can be changed into a prime (4547) 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, 48 + ... + 106.

It is an arithmetic number, because the mean of its divisors is an integer number (720).

2⁴⁵⁴³ is an apocalyptic number.

4543 is a deficient number, since it is larger than the sum of its proper divisors (1217).

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 product of its digits is 240, while the sum is 16.

The square root of 4543 is about 67.4017803919. The cubic root of 4543 is about 16.5620558799.

Adding to 4543 its reverse (3454), we get a palindrome (7997).

Subtracting from 4543 its reverse (3454), we obtain a square (1089 = 33²).

It can be divided in two parts, 45 and 43, that added together give a palindrome (88).

The spelling of 4543 in words is "four thousand, five hundred forty-three".