543200221 has 4 divisors (see below), whose sum is σ = 543246844. Its totient is φ = 543153600.

The previous prime is 543200213. The next prime is 543200243. The reversal of 543200221 is 122002345.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 422508025 + 120692196 = 20555^2 + 10986^2 .

It is a cyclic number.

It is not a de Polignac number, because 543200221 - 2³ = 543200213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (543200621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10981 + ... + 34741.

It is an arithmetic number, because the mean of its divisors is an integer number (135811711).

Almost surely, 2^543200221 is an apocalyptic number.

It is an amenable number.

543200221 is a deficient number, since it is larger than the sum of its proper divisors (46623).

543200221 is a wasteful number, since it uses less digits than its factorization.

543200221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46622.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 543200221 is about 23306.6561522669. The cubic root of 543200221 is about 815.9307724535.

Adding to 543200221 its reverse (122002345), we get a palindrome (665202566).

The spelling of 543200221 in words is "five hundred forty-three million, two hundred thousand, two hundred twenty-one".