200020189 has 2 divisors, whose sum is σ = 200020190. Its totient is φ = 200020188.
The previous prime is 200020157. The next prime is 200020199. The reversal of 200020189 is 981020002.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 199996164 + 24025 = 14142^2 + 155^2 .
It is a cyclic number.
It is not a de Polignac number, because 200020189 - 25 = 200020157 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (200020199) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100010094 + 100010095.
It is an arithmetic number, because the mean of its divisors is an integer number (100010095).
Almost surely, 2200020189 is an apocalyptic number.
It is an amenable number.
200020189 is a deficient number, since it is larger than the sum of its proper divisors (1).
200020189 is an equidigital number, since it uses as much as digits as its factorization.
200020189 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 288, while the sum is 22.
The square root of 200020189 is about 14142.8493946588. The cubic root of 200020189 is about 584.8232246452.
The spelling of 200020189 in words is "two hundred million, twenty thousand, one hundred eighty-nine".
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