540213 has 4 divisors (see below), whose sum is σ = 720288. Its totient is φ = 360140.

The previous prime is 540203. The next prime is 540217. The reversal of 540213 is 312045.

540213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 540213 - 2⁵ = 540181 is a prime.

It is a D-number.

It is a junction number, because it is equal to n+sod(n) for n = 540192 and 540201.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 540213.

It is not an unprimeable number, because it can be changed into a prime (540217) 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, 90033 + ... + 90038.

It is an arithmetic number, because the mean of its divisors is an integer number (180072).

2⁵⁴⁰²¹³ is an apocalyptic number.

It is an amenable number.

540213 is a deficient number, since it is larger than the sum of its proper divisors (180075).

540213 is a wasteful number, since it uses less digits than its factorization.

540213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180074.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 540213 is about 734.9918366894. The cubic root of 540213 is about 81.4432339599.

Adding to 540213 its reverse (312045), we get a palindrome (852258).

The spelling of 540213 in words is "five hundred forty thousand, two hundred thirteen".