8108191 has 8 divisors (see below), whose sum is σ = 9979424. Its totient is φ = 6415200.

The previous prime is 8108173. The next prime is 8108207. The reversal of 8108191 is 1918018.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8108191 - 2⁵ = 8108159 is a prime.

It is a super-2 number, since 2×8108191² = 131485522584962, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8108161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44460 + ... + 44641.

It is an arithmetic number, because the mean of its divisors is an integer number (1247428).

Almost surely, 2^8108191 is an apocalyptic number.

8108191 is a deficient number, since it is larger than the sum of its proper divisors (1871233).

8108191 is a wasteful number, since it uses less digits than its factorization.

8108191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89121.

The product of its (nonzero) digits is 576, while the sum is 28.

The square root of 8108191 is about 2847.4885425582. The cubic root of 8108191 is about 200.8975575928.

The spelling of 8108191 in words is "eight million, one hundred eight thousand, one hundred ninety-one".