543340289 has 2 divisors, whose sum is σ = 543340290. Its totient is φ = 543340288.

The previous prime is 543340279. The next prime is 543340309. The reversal of 543340289 is 982043345.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 511890625 + 31449664 = 22625^2 + 5608^2 .

It is a cyclic number.

It is not a de Polignac number, because 543340289 - 2⁸ = 543340033 is a prime.

It is a super-3 number, since 3×543340289³ (a number of 27 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (543340229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271670144 + 271670145.

It is an arithmetic number, because the mean of its divisors is an integer number (271670145).

Almost surely, 2^543340289 is an apocalyptic number.

It is an amenable number.

543340289 is a deficient number, since it is larger than the sum of its proper divisors (1).

543340289 is an equidigital number, since it uses as much as digits as its factorization.

543340289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 38.

The square root of 543340289 is about 23309.6608512436. The cubic root of 543340289 is about 816.0008975905. Note that the first 3 decimals are identical.

The spelling of 543340289 in words is "five hundred forty-three million, three hundred forty thousand, two hundred eighty-nine".