543064381 has 2 divisors, whose sum is σ = 543064382. Its totient is φ = 543064380.

The previous prime is 543064349. The next prime is 543064451. The reversal of 543064381 is 183460345.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 473758756 + 69305625 = 21766^2 + 8325^2 .

It is a cyclic number.

It is not a de Polignac number, because 543064381 - 2⁵ = 543064349 is a prime.

It is a super-2 number, since 2×543064381² = 589837843821826322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (543064481) 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, 271532190 + 271532191.

It is an arithmetic number, because the mean of its divisors is an integer number (271532191).

Almost surely, 2^543064381 is an apocalyptic number.

It is an amenable number.

543064381 is a deficient number, since it is larger than the sum of its proper divisors (1).

543064381 is an equidigital number, since it uses as much as digits as its factorization.

543064381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 543064381 is about 23303.7417810960. The cubic root of 543064381 is about 815.8627525521.

The spelling of 543064381 in words is "five hundred forty-three million, sixty-four thousand, three hundred eighty-one".