2243312191 has 2 divisors, whose sum is σ = 2243312192. Its totient is φ = 2243312190.

The previous prime is 2243312063. The next prime is 2243312221. The reversal of 2243312191 is 1912133422.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2243312191 - 2⁷ = 2243312063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2243316191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1121656095 + 1121656096.

It is an arithmetic number, because the mean of its divisors is an integer number (1121656096).

Almost surely, 2^2243312191 is an apocalyptic number.

2243312191 is a deficient number, since it is larger than the sum of its proper divisors (1).

2243312191 is an equidigital number, since it uses as much as digits as its factorization.

2243312191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 28.

The square root of 2243312191 is about 47363.6167432345. The cubic root of 2243312191 is about 1309.0711110194.

The spelling of 2243312191 in words is "two billion, two hundred forty-three million, three hundred twelve thousand, one hundred ninety-one".