4220189 has 2 divisors, whose sum is σ = 4220190. Its totient is φ = 4220188.

The previous prime is 4220173. The next prime is 4220207. The reversal of 4220189 is 9810224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4202500 + 17689 = 2050^2 + 133^2 .

It is a cyclic number.

It is not a de Polignac number, because 4220189 - 2⁴ = 4220173 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4220789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2110094 + 2110095.

It is an arithmetic number, because the mean of its divisors is an integer number (2110095).

Almost surely, 2^4220189 is an apocalyptic number.

It is an amenable number.

4220189 is a deficient number, since it is larger than the sum of its proper divisors (1).

4220189 is an equidigital number, since it uses as much as digits as its factorization.

4220189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 4220189 is about 2054.3098597826. The cubic root of 4220189 is about 161.6009714063.

The spelling of 4220189 in words is "four million, two hundred twenty thousand, one hundred eighty-nine".