543654913 has 2 divisors, whose sum is σ = 543654914. Its totient is φ = 543654912.

The previous prime is 543654911. The next prime is 543654919. The reversal of 543654913 is 319456345.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 511528689 + 32126224 = 22617^2 + 5668^2 .

It is a cyclic number.

It is not a de Polignac number, because 543654913 - 2¹ = 543654911 is a prime.

Together with 543654911, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (543654911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271827456 + 271827457.

It is an arithmetic number, because the mean of its divisors is an integer number (271827457).

Almost surely, 2^543654913 is an apocalyptic number.

It is an amenable number.

543654913 is a deficient number, since it is larger than the sum of its proper divisors (1).

543654913 is an equidigital number, since it uses as much as digits as its factorization.

543654913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 194400, while the sum is 40.

The square root of 543654913 is about 23316.4086642862. The cubic root of 543654913 is about 816.1583703770.

The spelling of 543654913 in words is "five hundred forty-three million, six hundred fifty-four thousand, nine hundred thirteen".