8051191 has 4 divisors (see below), whose sum is σ = 8238472. Its totient is φ = 7863912.

The previous prime is 8051171. The next prime is 8051203. The reversal of 8051191 is 1911508.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8051191 - 2⁷ = 8051063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8051101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93576 + ... + 93661.

It is an arithmetic number, because the mean of its divisors is an integer number (2059618).

Almost surely, 2^8051191 is an apocalyptic number.

8051191 is a deficient number, since it is larger than the sum of its proper divisors (187281).

8051191 is a wasteful number, since it uses less digits than its factorization.

8051191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187280.

The product of its (nonzero) digits is 360, while the sum is 25.

The square root of 8051191 is about 2837.4620702311. The cubic root of 8051191 is about 200.4256849853.

Adding to 8051191 its reverse (1911508), we get a palindrome (9962699).

The spelling of 8051191 in words is "eight million, fifty-one thousand, one hundred ninety-one".