119666191 has 2 divisors, whose sum is σ = 119666192. Its totient is φ = 119666190.

The previous prime is 119666189. The next prime is 119666203. The reversal of 119666191 is 191666911.

119666191 is nontrivially palindromic in base 8.

It is a weak prime.

It is an emirp because it is prime and its reverse (191666911) is a distict prime. It is also a bemirp because it and its reverse can be mirrored producing other two distinct primes, 161999611 and 116999161.

It is a cyclic number.

It is not a de Polignac number, because 119666191 - 2¹ = 119666189 is a prime.

Together with 119666189, 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 (119663191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59833095 + 59833096.

It is an arithmetic number, because the mean of its divisors is an integer number (59833096).

Almost surely, 2^119666191 is an apocalyptic number.

119666191 is a deficient number, since it is larger than the sum of its proper divisors (1).

119666191 is an equidigital number, since it uses as much as digits as its factorization.

119666191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17496, while the sum is 40.

The square root of 119666191 is about 10939.2043129288. The cubic root of 119666191 is about 492.7846324668.

The spelling of 119666191 in words is "one hundred nineteen million, six hundred sixty-six thousand, one hundred ninety-one".