8191142 has 8 divisors (see below), whose sum is σ = 12299016. Its totient is φ = 4091472.

The previous prime is 8191133. The next prime is 8191181. The reversal of 8191142 is 2411918.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2258 + ... + 4634.

It is an arithmetic number, because the mean of its divisors is an integer number (1537377).

Almost surely, 2^8191142 is an apocalyptic number.

8191142 is a deficient number, since it is larger than the sum of its proper divisors (4107874).

8191142 is a wasteful number, since it uses less digits than its factorization.

8191142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4102.

The product of its digits is 576, while the sum is 26.

The square root of 8191142 is about 2862.0171208433. The cubic root of 8191142 is about 201.5803298972.

The spelling of 8191142 in words is "eight million, one hundred ninety-one thousand, one hundred forty-two".