200591 has 2 divisors, whose sum is σ = 200592. Its totient is φ = 200590.

The previous prime is 200587. The next prime is 200597. The reversal of 200591 is 195002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 200591 - 2² = 200587 is a prime.

It is a Chen prime.

It is a zygodrome in base 2.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 200591.

It is not a weakly prime, because it can be changed into another prime (200597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100295 + 100296.

It is an arithmetic number, because the mean of its divisors is an integer number (100296).

2²⁰⁰⁵⁹¹ is an apocalyptic number.

200591 is a deficient number, since it is larger than the sum of its proper divisors (1).

200591 is an equidigital number, since it uses as much as digits as its factorization.

200591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 200591 is about 447.8738661722. The cubic root of 200591 is about 58.5379012676.

Adding to 200591 its reverse (195002), we get a palindrome (395593).

The spelling of 200591 in words is "two hundred thousand, five hundred ninety-one".