200280191 has 2 divisors, whose sum is σ = 200280192. Its totient is φ = 200280190.

The previous prime is 200280187. The next prime is 200280217. The reversal of 200280191 is 191082002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 200280191 - 2² = 200280187 is a prime.

It is a super-2 number, since 2×200280191² = 80224309813992962, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200285191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100140095 + 100140096.

It is an arithmetic number, because the mean of its divisors is an integer number (100140096).

Almost surely, 2^200280191 is an apocalyptic number.

200280191 is a deficient number, since it is larger than the sum of its proper divisors (1).

200280191 is an equidigital number, since it uses as much as digits as its factorization.

200280191 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 23.

The square root of 200280191 is about 14152.0384044137. The cubic root of 200280191 is about 585.0765146954.

The spelling of 200280191 in words is "two hundred million, two hundred eighty thousand, one hundred ninety-one".