5218189 has 2 divisors, whose sum is σ = 5218190. Its totient is φ = 5218188.

The previous prime is 5218181. The next prime is 5218207. The reversal of 5218189 is 9818125.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3572100 + 1646089 = 1890^2 + 1283^2 .

It is a cyclic number.

It is not a de Polignac number, because 5218189 - 2³ = 5218181 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5218181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2609094 + 2609095.

It is an arithmetic number, because the mean of its divisors is an integer number (2609095).

Almost surely, 2^5218189 is an apocalyptic number.

It is an amenable number.

5218189 is a deficient number, since it is larger than the sum of its proper divisors (1).

5218189 is an equidigital number, since it uses as much as digits as its factorization.

5218189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760, while the sum is 34.

The square root of 5218189 is about 2284.3355707951. The cubic root of 5218189 is about 173.4495862962.

The spelling of 5218189 in words is "five million, two hundred eighteen thousand, one hundred eighty-nine".