2243191 has 6 divisors (see below), whose sum is σ = 2324192. Its totient is φ = 2162760.

The previous prime is 2243183. The next prime is 2243203. The reversal of 2243191 is 1913422.

It is not a de Polignac number, because 2243191 - 2³ = 2243183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2243161) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8205 + ... + 8473.

2^2243191 is an apocalyptic number.

2243191 is a deficient number, since it is larger than the sum of its proper divisors (81001).

2243191 is an frugal number, since it uses more digits than its factorization.

2243191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569 (or 300 counting only the distinct ones).

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

The square root of 2243191 is about 1497.7286136013. The cubic root of 2243191 is about 130.9047537173.

It can be divided in two parts, 22431 and 91, that added together give a palindrome (22522).

The spelling of 2243191 in words is "two million, two hundred forty-three thousand, one hundred ninety-one".