208261199 has 2 divisors, whose sum is σ = 208261200. Its totient is φ = 208261198.

The previous prime is 208261187. The next prime is 208261201. The reversal of 208261199 is 991162802.

208261199 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 208261199 - 2¹² = 208257103 is a prime.

It is a Sophie Germain prime.

Together with 208261201, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (208261129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104130599 + 104130600.

It is an arithmetic number, because the mean of its divisors is an integer number (104130600).

Almost surely, 2^208261199 is an apocalyptic number.

208261199 is a deficient number, since it is larger than the sum of its proper divisors (1).

208261199 is an equidigital number, since it uses as much as digits as its factorization.

208261199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 208261199 is about 14431.2577067974. The cubic root of 208261199 is about 592.7471230829.

The spelling of 208261199 in words is "two hundred eight million, two hundred sixty-one thousand, one hundred ninety-nine".