540287 has 4 divisors (see below), whose sum is σ = 589416. Its totient is φ = 491160.

The previous prime is 540283. The next prime is 540301. The reversal of 540287 is 782045.

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 540287 - 2² = 540283 is a prime.

It is a Duffinian number.

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 540287.

It is not an unprimeable number, because it can be changed into a prime (540283) 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, 24548 + ... + 24569.

It is an arithmetic number, because the mean of its divisors is an integer number (147354).

2⁵⁴⁰²⁸⁷ is an apocalyptic number.

540287 is a deficient number, since it is larger than the sum of its proper divisors (49129).

540287 is a wasteful number, since it uses less digits than its factorization.

540287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49128.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 540287 is about 735.0421756607. The cubic root of 540287 is about 81.4469525697.

The spelling of 540287 in words is "five hundred forty thousand, two hundred eighty-seven".