543430081 has 2 divisors, whose sum is σ = 543430082. Its totient is φ = 543430080.

The previous prime is 543430037. The next prime is 543430103. The reversal of 543430081 is 180034345.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 511890625 + 31539456 = 22625^2 + 5616^2 .

It is a cyclic number.

It is not a de Polignac number, because 543430081 - 2⁹ = 543429569 is a prime.

It is a super-2 number, since 2×543430081² = 590632505871333122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (543430021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271715040 + 271715041.

It is an arithmetic number, because the mean of its divisors is an integer number (271715041).

Almost surely, 2^543430081 is an apocalyptic number.

It is an amenable number.

543430081 is a deficient number, since it is larger than the sum of its proper divisors (1).

543430081 is an equidigital number, since it uses as much as digits as its factorization.

543430081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 543430081 is about 23311.5868400244. The cubic root of 543430081 is about 816.0458456757.

The spelling of 543430081 in words is "five hundred forty-three million, four hundred thirty thousand, eighty-one".