2243741 has 2 divisors, whose sum is σ = 2243742. Its totient is φ = 2243740.

The previous prime is 2243723. The next prime is 2243743. The reversal of 2243741 is 1473422.

2243741 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 can be written as a sum of positive squares in only one way, i.e., 1331716 + 912025 = 1154^2 + 955^2 .

It is a cyclic number.

It is not a de Polignac number, because 2243741 - 2¹⁸ = 1981597 is a prime.

Together with 2243743, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p₁₆₅₆₅₀ and since 2243741 and 165650 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2243743) 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, 1121870 + 1121871.

It is an arithmetic number, because the mean of its divisors is an integer number (1121871).

2^2243741 is an apocalyptic number.

It is an amenable number.

2243741 is a deficient number, since it is larger than the sum of its proper divisors (1).

2243741 is an equidigital number, since it uses as much as digits as its factorization.

2243741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1344, while the sum is 23.

The square root of 2243741 is about 1497.9122137161. The cubic root of 2243741 is about 130.9154515329.

The spelling of 2243741 in words is "two million, two hundred forty-three thousand, seven hundred forty-one".