2871191 has 2 divisors, whose sum is σ = 2871192. Its totient is φ = 2871190.

The previous prime is 2871173. The next prime is 2871199. The reversal of 2871191 is 1911782.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2871191 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2871199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1435595 + 1435596.

It is an arithmetic number, because the mean of its divisors is an integer number (1435596).

2^2871191 is an apocalyptic number.

2871191 is a deficient number, since it is larger than the sum of its proper divisors (1).

2871191 is an equidigital number, since it uses as much as digits as its factorization.

2871191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1008, while the sum is 29.

The square root of 2871191 is about 1694.4589106851. The cubic root of 2871191 is about 142.1305253599.

The spelling of 2871191 in words is "two million, eight hundred seventy-one thousand, one hundred ninety-one".