543342523 has 2 divisors, whose sum is σ = 543342524. Its totient is φ = 543342522.

The previous prime is 543342509. The next prime is 543342581. The reversal of 543342523 is 325243345.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 543342523 - 2¹⁷ = 543211451 is a prime.

It is not a weakly prime, because it can be changed into another prime (543342223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271671261 + 271671262.

It is an arithmetic number, because the mean of its divisors is an integer number (271671262).

Almost surely, 2^543342523 is an apocalyptic number.

543342523 is a deficient number, since it is larger than the sum of its proper divisors (1).

543342523 is an equidigital number, since it uses as much as digits as its factorization.

543342523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43200, while the sum is 31.

The square root of 543342523 is about 23309.7087712395. The cubic root of 543342523 is about 816.0020159464.

Adding to 543342523 its reverse (325243345), we get a palindrome (868585868).

The spelling of 543342523 in words is "five hundred forty-three million, three hundred forty-two thousand, five hundred twenty-three".