540223 has 4 divisors (see below), whose sum is σ = 541728. Its totient is φ = 538720.

The previous prime is 540217. The next prime is 540233. The reversal of 540223 is 322045.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 540223 - 2⁹ = 539711 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 540197 and 540206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138 + ... + 1048.

It is an arithmetic number, because the mean of its divisors is an integer number (135432).

2⁵⁴⁰²²³ is an apocalyptic number.

540223 is a deficient number, since it is larger than the sum of its proper divisors (1505).

540223 is an equidigital number, since it uses as much as digits as its factorization.

540223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1504.

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 540223 is about 734.9986394545. The cubic root of 540223 is about 81.4437364946.

Adding to 540223 its reverse (322045), we get a palindrome (862268).

The spelling of 540223 in words is "five hundred forty thousand, two hundred twenty-three".