540547 has 16 divisors (see below), whose sum is σ = 663552. Its totient is φ = 430560.

The previous prime is 540541. The next prime is 540557. The reversal of 540547 is 745045.

540547 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 540547 - 2³ = 540539 is a prime.

It is a Duffinian number.

540547 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (540541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10173 + ... + 10225.

It is an arithmetic number, because the mean of its divisors is an integer number (41472).

2⁵⁴⁰⁵⁴⁷ is an apocalyptic number.

540547 is a deficient number, since it is larger than the sum of its proper divisors (123005).

540547 is a wasteful number, since it uses less digits than its factorization.

540547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138.

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 540547 is about 735.2190149881. The cubic root of 540547 is about 81.4600152640.

The spelling of 540547 in words is "five hundred forty thousand, five hundred forty-seven".