45543 has 16 divisors (see below), whose sum is σ = 69120. Its totient is φ = 26496.

The previous prime is 45541. The next prime is 45553. The reversal of 45543 is 34554.

It is a happy number.

It is not a de Polignac number, because 45543 - 2¹ = 45541 is a prime.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 946 + ... + 992.

It is an arithmetic number, because the mean of its divisors is an integer number (4320).

2⁴⁵⁵⁴³ is an apocalyptic number.

45543 is a deficient number, since it is larger than the sum of its proper divisors (23577).

45543 is a wasteful number, since it uses less digits than its factorization.

45543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86.

The product of its digits is 1200, while the sum is 21.

The square root of 45543 is about 213.4080598291. The cubic root of 45543 is about 35.7114275808.

The spelling of 45543 in words is "forty-five thousand, five hundred forty-three".