540085 has 16 divisors (see below), whose sum is σ = 798336. Its totient is φ = 341568.

The previous prime is 540079. The next prime is 540101. The reversal of 540085 is 580045.

540085 = 13² + 14² + ... + 117².

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 540085 - 2⁹ = 539573 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 139 + ... + 1048.

It is an arithmetic number, because the mean of its divisors is an integer number (49896).

2⁵⁴⁰⁰⁸⁵ is an apocalyptic number.

It is an amenable number.

540085 is a deficient number, since it is larger than the sum of its proper divisors (258251).

540085 is a wasteful number, since it uses less digits than its factorization.

540085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 540085 is about 734.9047557337. The cubic root of 540085 is about 81.4368009681.

The spelling of 540085 in words is "five hundred forty thousand, eighty-five".