544666189 has 2 divisors, whose sum is σ = 544666190. Its totient is φ = 544666188.

The previous prime is 544666183. The next prime is 544666193. The reversal of 544666189 is 981666445.

544666189 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 371217289 + 173448900 = 19267^2 + 13170^2 .

It is a cyclic number.

It is not a de Polignac number, because 544666189 - 2⁹ = 544665677 is a prime.

It is a super-2 number, since 2×544666189² = 593322514879567442, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (544666183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272333094 + 272333095.

It is an arithmetic number, because the mean of its divisors is an integer number (272333095).

Almost surely, 2^544666189 is an apocalyptic number.

It is an amenable number.

544666189 is a deficient number, since it is larger than the sum of its proper divisors (1).

544666189 is an equidigital number, since it uses as much as digits as its factorization.

544666189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1244160, while the sum is 49.

The square root of 544666189 is about 23338.0845186575. The cubic root of 544666189 is about 816.6641140741.

The spelling of 544666189 in words is "five hundred forty-four million, six hundred sixty-six thousand, one hundred eighty-nine".