540612 has 18 divisors (see below), whose sum is σ = 1366638. Its totient is φ = 180192.

The previous prime is 540611. The next prime is 540613. The reversal of 540612 is 216045.

It is a happy number.

540612 is a `hidden beast` number, since 54 + 0 + 612 = 666.

540612 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (540611) and next prime (540613).

It can be written as a sum of positive squares in only one way, i.e., 427716 + 112896 = 654^2 + 336^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×540612² = 584522669088, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 540612.

It is not an unprimeable number, because it can be changed into a prime (540611) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7473 + ... + 7544.

2⁵⁴⁰⁶¹² is an apocalyptic number.

It is an amenable number.

540612 is an abundant number, since it is smaller than the sum of its proper divisors (826026).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

540612 is a wasteful number, since it uses less digits than its factorization.

540612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15027 (or 15022 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 540612 is about 735.2632181743. The cubic root of 540612 is about 81.4632802831.

Adding to 540612 its reverse (216045), we get a palindrome (756657).

The spelling of 540612 in words is "five hundred forty thousand, six hundred twelve".