2243911 has 2 divisors, whose sum is σ = 2243912. Its totient is φ = 2243910.

The previous prime is 2243909. The next prime is 2243959. The reversal of 2243911 is 1193422.

2243911 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2243911 - 2¹ = 2243909 is a prime.

Together with 2243909, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2244911) 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, 1121955 + 1121956.

It is an arithmetic number, because the mean of its divisors is an integer number (1121956).

2^2243911 is an apocalyptic number.

2243911 is a deficient number, since it is larger than the sum of its proper divisors (1).

2243911 is an equidigital number, since it uses as much as digits as its factorization.

2243911 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 22.

The square root of 2243911 is about 1497.9689582899. The cubic root of 2243911 is about 130.9187577767.

The spelling of 2243911 in words is "two million, two hundred forty-three thousand, nine hundred eleven".