220800191 has 2 divisors, whose sum is σ = 220800192. Its totient is φ = 220800190.

The previous prime is 220800157. The next prime is 220800257. The reversal of 220800191 is 191008022.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220800191 is a prime.

It is a Chen prime.

It is equal to p_12164090 and since 220800191 and 12164090 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220802191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110400095 + 110400096.

It is an arithmetic number, because the mean of its divisors is an integer number (110400096).

Almost surely, 2^220800191 is an apocalyptic number.

220800191 is a deficient number, since it is larger than the sum of its proper divisors (1).

220800191 is an equidigital number, since it uses as much as digits as its factorization.

220800191 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 220800191 is about 14859.3469237379. The cubic root of 220800191 is about 604.4120974303.

The spelling of 220800191 in words is "two hundred twenty million, eight hundred thousand, one hundred ninety-one".