540207 has 12 divisors (see below), whose sum is σ = 786864. Its totient is φ = 357120.

The previous prime is 540203. The next prime is 540217. The reversal of 540207 is 702045.

It is a happy number.

It is not a de Polignac number, because 540207 - 2² = 540203 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 540207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1582 + ... + 1892.

It is an arithmetic number, because the mean of its divisors is an integer number (65572).

2⁵⁴⁰²⁰⁷ is an apocalyptic number.

540207 is a deficient number, since it is larger than the sum of its proper divisors (246657).

540207 is a wasteful number, since it uses less digits than its factorization.

540207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510 (or 507 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 18.

The square root of 540207 is about 734.9877550000. The cubic root of 540207 is about 81.4429324361.

Adding to 540207 its sum of digits (18), we get a square (540225 = 735²).

It can be divided in two parts, 540 and 207, that added together give a palindrome (747).

The spelling of 540207 in words is "five hundred forty thousand, two hundred seven".