194190211 has 2 divisors, whose sum is σ = 194190212. Its totient is φ = 194190210.

The previous prime is 194190209. The next prime is 194190233. The reversal of 194190211 is 112091491.

194190211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 194190211 - 2¹ = 194190209 is a prime.

Together with 194190209, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 194190211.

It is not a weakly prime, because it can be changed into another prime (194190281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97095105 + 97095106.

It is an arithmetic number, because the mean of its divisors is an integer number (97095106).

Almost surely, 2^194190211 is an apocalyptic number.

194190211 is the 8046-th hex number.

194190211 is a deficient number, since it is larger than the sum of its proper divisors (1).

194190211 is an equidigital number, since it uses as much as digits as its factorization.

194190211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 28.

The square root of 194190211 is about 13935.2147812655. The cubic root of 194190211 is about 579.0851719596.

The spelling of 194190211 in words is "one hundred ninety-four million, one hundred ninety thousand, two hundred eleven".