543220343 has 2 divisors, whose sum is σ = 543220344. Its totient is φ = 543220342.

The previous prime is 543220331. The next prime is 543220351. The reversal of 543220343 is 343022345.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 543220343 - 2²⁶ = 476111479 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (543222343) 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 as a sum of consecutive naturals, namely, 271610171 + 271610172.

It is an arithmetic number, because the mean of its divisors is an integer number (271610172).

Almost surely, 2^543220343 is an apocalyptic number.

543220343 is a deficient number, since it is larger than the sum of its proper divisors (1).

543220343 is an equidigital number, since it uses as much as digits as its factorization.

543220343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 26.

The square root of 543220343 is about 23307.0878275258. The cubic root of 543220343 is about 815.9408472876.

Adding to 543220343 its reverse (343022345), we get a palindrome (886242688).

The spelling of 543220343 in words is "five hundred forty-three million, two hundred twenty thousand, three hundred forty-three".