196116191 has 2 divisors, whose sum is σ = 196116192. Its totient is φ = 196116190.

The previous prime is 196116149. The next prime is 196116229. The reversal of 196116191 is 191611691.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (191611691) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 196116191 - 2¹⁰ = 196115167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196116121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98058095 + 98058096.

It is an arithmetic number, because the mean of its divisors is an integer number (98058096).

Almost surely, 2^196116191 is an apocalyptic number.

196116191 is a deficient number, since it is larger than the sum of its proper divisors (1).

196116191 is an equidigital number, since it uses as much as digits as its factorization.

196116191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2916, while the sum is 35.

The square root of 196116191 is about 14004.1490637596. The cubic root of 196116191 is about 580.9933344616.

The spelling of 196116191 in words is "one hundred ninety-six million, one hundred sixteen thousand, one hundred ninety-one".