540535 has 4 divisors (see below), whose sum is σ = 648648. Its totient is φ = 432424.

The previous prime is 540517. The next prime is 540539. The reversal of 540535 is 535045.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 540535 - 2¹¹ = 538487 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54049 + ... + 54058.

It is an arithmetic number, because the mean of its divisors is an integer number (162162).

2⁵⁴⁰⁵³⁵ is an apocalyptic number.

540535 is a deficient number, since it is larger than the sum of its proper divisors (108113).

540535 is a wasteful number, since it uses less digits than its factorization.

540535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108112.

The product of its (nonzero) digits is 1500, while the sum is 22.

The square root of 540535 is about 735.2108541092. The cubic root of 540535 is about 81.4594124627.

The spelling of 540535 in words is "five hundred forty thousand, five hundred thirty-five".