540212 has 12 divisors (see below), whose sum is σ = 978180. Its totient is φ = 260736.

The previous prime is 540203. The next prime is 540217. The reversal of 540212 is 212045.

It can be written as a sum of positive squares in 2 ways, for example, as 163216 + 376996 = 404^2 + 614^2 .

It is a congruent number.

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, 2213 + ... + 2444.

It is an arithmetic number, because the mean of its divisors is an integer number (81515).

2⁵⁴⁰²¹² is an apocalyptic number.

It is an amenable number.

540212 is a deficient number, since it is larger than the sum of its proper divisors (437968).

540212 is a wasteful number, since it uses less digits than its factorization.

540212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4690 (or 4688 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 540212 is about 734.9911564094. The cubic root of 540212 is about 81.4431837061.

Adding to 540212 its reverse (212045), we get a palindrome (752257).

The spelling of 540212 in words is "five hundred forty thousand, two hundred twelve".