544223189 has 2 divisors, whose sum is σ = 544223190. Its totient is φ = 544223188.

The previous prime is 544223153. The next prime is 544223209. The reversal of 544223189 is 981322445.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 423948100 + 120275089 = 20590^2 + 10967^2 .

It is a cyclic number.

It is not a de Polignac number, because 544223189 - 2²⁰ = 543174613 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (544223129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272111594 + 272111595.

It is an arithmetic number, because the mean of its divisors is an integer number (272111595).

Almost surely, 2^544223189 is an apocalyptic number.

It is an amenable number.

544223189 is a deficient number, since it is larger than the sum of its proper divisors (1).

544223189 is an equidigital number, since it uses as much as digits as its factorization.

544223189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69120, while the sum is 38.

The square root of 544223189 is about 23328.5916634502. The cubic root of 544223189 is about 816.4426448890.

The spelling of 544223189 in words is "five hundred forty-four million, two hundred twenty-three thousand, one hundred eighty-nine".