540279 has 12 divisors (see below), whose sum is σ = 787176. Its totient is φ = 357072.

The previous prime is 540271. The next prime is 540283. The reversal of 540279 is 972045.

It is not a de Polignac number, because 540279 - 2³ = 540271 is a prime.

540279 is a lucky number.

It is a plaindrome in base 13.

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 540279.

It is not an unprimeable number, because it can be changed into a prime (540271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1384 + ... + 1730.

It is an arithmetic number, because the mean of its divisors is an integer number (65598).

2⁵⁴⁰²⁷⁹ is an apocalyptic number.

540279 is a deficient number, since it is larger than the sum of its proper divisors (246897).

540279 is a wasteful number, since it uses less digits than its factorization.

540279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526 (or 523 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 540279 is about 735.0367337759. The cubic root of 540279 is about 81.4465505742.

The spelling of 540279 in words is "five hundred forty thousand, two hundred seventy-nine".