543612 has 24 divisors (see below), whose sum is σ = 1285200. Its totient is φ = 178816.

The previous prime is 543611. The next prime is 543617. The reversal of 543612 is 216345.

543612 = T₆₃ + T₆₄ + ... + T₁₅₁.

It is a happy number.

543612 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between odd and even.

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 543612.

It is not an unprimeable number, because it can be changed into a prime (543611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 814 + ... + 1322.

It is an arithmetic number, because the mean of its divisors is an integer number (53550).

2⁵⁴³⁶¹² is an apocalyptic number.

It is an amenable number.

543612 is an abundant number, since it is smaller than the sum of its proper divisors (741588).

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

543612 is a wasteful number, since it uses less digits than its factorization.

543612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605 (or 603 counting only the distinct ones).

The product of its digits is 720, while the sum is 21.

The square root of 543612 is about 737.3004814863. The cubic root of 543612 is about 81.6136895525.

Adding to 543612 its reverse (216345), we get a palindrome (759957).

The spelling of 543612 in words is "five hundred forty-three thousand, six hundred twelve".