8130191 has 2 divisors, whose sum is σ = 8130192. Its totient is φ = 8130190.

The previous prime is 8130169. The next prime is 8130193. The reversal of 8130191 is 1910318.

8130191 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8130191 - 2²² = 3935887 is a prime.

It is a super-2 number, since 2×8130191² = 132200011392962, which contains 22 as substring.

Together with 8130193, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8130193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4065095 + 4065096.

It is an arithmetic number, because the mean of its divisors is an integer number (4065096).

Almost surely, 2^8130191 is an apocalyptic number.

8130191 is a deficient number, since it is larger than the sum of its proper divisors (1).

8130191 is an equidigital number, since it uses as much as digits as its factorization.

8130191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 23.

The square root of 8130191 is about 2851.3489789922. The cubic root of 8130191 is about 201.0790923276.

The spelling of 8130191 in words is "eight million, one hundred thirty thousand, one hundred ninety-one".