205080211 has 4 divisors (see below), whose sum is σ = 234377392. Its totient is φ = 175783032.

The previous prime is 205080209. The next prime is 205080251. The reversal of 205080211 is 112080502.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 205080211 - 2¹ = 205080209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205080251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14648580 + ... + 14648593.

It is an arithmetic number, because the mean of its divisors is an integer number (58594348).

Almost surely, 2^205080211 is an apocalyptic number.

205080211 is a deficient number, since it is larger than the sum of its proper divisors (29297181).

205080211 is an equidigital number, since it uses as much as digits as its factorization.

205080211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29297180.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 205080211 is about 14320.6218789548. The cubic root of 205080211 is about 589.7137469963.

The spelling of 205080211 in words is "two hundred five million, eighty thousand, two hundred eleven".