2943191 has 2 divisors, whose sum is σ = 2943192. Its totient is φ = 2943190.

The previous prime is 2943179. The next prime is 2943217. The reversal of 2943191 is 1913492.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2943191 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2943121) 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, 1471595 + 1471596.

It is an arithmetic number, because the mean of its divisors is an integer number (1471596).

2^2943191 is an apocalyptic number.

2943191 is a deficient number, since it is larger than the sum of its proper divisors (1).

2943191 is an equidigital number, since it uses as much as digits as its factorization.

2943191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944, while the sum is 29.

The square root of 2943191 is about 1715.5730820924. The cubic root of 2943191 is about 143.3087855323.

The spelling of 2943191 in words is "two million, nine hundred forty-three thousand, one hundred ninety-one".