108066191 has 2 divisors, whose sum is σ = 108066192. Its totient is φ = 108066190.

The previous prime is 108066169. The next prime is 108066193. The reversal of 108066191 is 191660801.

It is a strong prime.

It is an emirp because it is prime and its reverse (191660801) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-108066191 is a prime.

Together with 108066193, 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 (108066193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54033095 + 54033096.

It is an arithmetic number, because the mean of its divisors is an integer number (54033096).

Almost surely, 2^108066191 is an apocalyptic number.

108066191 is a deficient number, since it is larger than the sum of its proper divisors (1).

108066191 is an equidigital number, since it uses as much as digits as its factorization.

108066191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 108066191 is about 10395.4889735885. The cubic root of 108066191 is about 476.3175842987.

The spelling of 108066191 in words is "one hundred eight million, sixty-six thousand, one hundred ninety-one".