543040403 has 2 divisors, whose sum is σ = 543040404. Its totient is φ = 543040402.

The previous prime is 543040331. The next prime is 543040417. The reversal of 543040403 is 304040345.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 543040403 - 2¹⁴ = 543024019 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (543040103) 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, 271520201 + 271520202.

It is an arithmetic number, because the mean of its divisors is an integer number (271520202).

Almost surely, 2^543040403 is an apocalyptic number.

543040403 is a deficient number, since it is larger than the sum of its proper divisors (1).

543040403 is an equidigital number, since it uses as much as digits as its factorization.

543040403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 543040403 is about 23303.2273086798. The cubic root of 543040403 is about 815.8507447401.

Adding to 543040403 its reverse (304040345), we get a palindrome (847080748).

The spelling of 543040403 in words is "five hundred forty-three million, forty thousand, four hundred three".