2812291 has 2 divisors, whose sum is σ = 2812292. Its totient is φ = 2812290.

The previous prime is 2812267. The next prime is 2812297. The reversal of 2812291 is 1922182.

2812291 is digitally balanced in base 2, 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 2812291 - 2¹⁹ = 2288003 is a prime.

It is not a weakly prime, because it can be changed into another prime (2812297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1406145 + 1406146.

It is an arithmetic number, because the mean of its divisors is an integer number (1406146).

2^2812291 is an apocalyptic number.

2812291 is a deficient number, since it is larger than the sum of its proper divisors (1).

2812291 is an equidigital number, since it uses as much as digits as its factorization.

2812291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576, while the sum is 25.

The square root of 2812291 is about 1676.9886702062. The cubic root of 2812291 is about 141.1519077739.

The spelling of 2812291 in words is "two million, eight hundred twelve thousand, two hundred ninety-one".