543221 has 8 divisors (see below), whose sum is σ = 630144. Its totient is φ = 458640.

The previous prime is 543217. The next prime is 543223. The reversal of 543221 is 122345.

543221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 543221 - 2² = 543217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 12.

It is a nialpdrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 543221.

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 543221.

It is not an unprimeable number, because it can be changed into a prime (543223) 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, 50 + ... + 1043.

It is an arithmetic number, because the mean of its divisors is an integer number (78768).

2⁵⁴³²²¹ is an apocalyptic number.

It is an amenable number.

543221 is a deficient number, since it is larger than the sum of its proper divisors (86923).

543221 is a wasteful number, since it uses less digits than its factorization.

543221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1171.

The product of its digits is 240, while the sum is 17.

The square root of 543221 is about 737.0352773104. The cubic root of 543221 is about 81.5941176235.

Adding to 543221 its reverse (122345), we get a palindrome (665566).

The spelling of 543221 in words is "five hundred forty-three thousand, two hundred twenty-one".