2243523 has 4 divisors (see below), whose sum is σ = 2991368. Its totient is φ = 1495680.

The previous prime is 2243503. The next prime is 2243531. The reversal of 2243523 is 3253422.

2243523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2243523 - 2⁵ = 2243491 is a prime.

It is a d-powerful number, because it can be written as 2¹¹ + 2¹⁷ + 4 + 3⁸ + 5³ + 2²¹ + 3⁸ .

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2243523.

It is not an unprimeable number, because it can be changed into a prime (2243503) 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 in 3 ways as a sum of consecutive naturals, for example, 373918 + ... + 373923.

It is an arithmetic number, because the mean of its divisors is an integer number (747842).

2^2243523 is an apocalyptic number.

2243523 is a deficient number, since it is larger than the sum of its proper divisors (747845).

2243523 is an equidigital number, since it uses as much as digits as its factorization.

2243523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747844.

The product of its digits is 1440, while the sum is 21.

The square root of 2243523 is about 1497.8394439993. The cubic root of 2243523 is about 130.9112115169.

Adding to 2243523 its reverse (3253422), we get a palindrome (5496945).

The spelling of 2243523 in words is "two million, two hundred forty-three thousand, five hundred twenty-three".