4539 has 8 divisors (see below), whose sum is σ = 6480. Its totient is φ = 2816.

The previous prime is 4523. The next prime is 4547. The reversal of 4539 is 9354.

4539 is an esthetic number in base 4, 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 not a de Polignac number, because 4539 - 2⁴ = 4523 is a prime.

4539 is a lucky number.

It is a plaindrome in base 11 and base 16.

It is a zygodrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (4519) 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, 7 + ... + 95.

It is an arithmetic number, because the mean of its divisors is an integer number (810).

2⁴⁵³⁹ is an apocalyptic number.

4539 is a deficient number, since it is larger than the sum of its proper divisors (1941).

4539 is a wasteful number, since it uses less digits than its factorization.

4539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109.

The product of its digits is 540, while the sum is 21.

The square root of 4539 is about 67.3721010508. The cubic root of 4539 is about 16.5571936247.

Adding to 4539 its sum of digits (21), we get a triangular number (4560 = T₉₅).

The spelling of 4539 in words is "four thousand, five hundred thirty-nine".