2243503 has 2 divisors, whose sum is σ = 2243504. Its totient is φ = 2243502.

The previous prime is 2243497. The next prime is 2243531. The reversal of 2243503 is 3053422.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2243503 is a prime.

It is a super-2 number, since 2×2243503² = 10066611422018, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2¹³ + 2²¹ + 4⁴ + 3⁶ + 5⁷ + 0 + 3¹⁰ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2243203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1121751 + 1121752.

It is an arithmetic number, because the mean of its divisors is an integer number (1121752).

2^2243503 is an apocalyptic number.

2243503 is a deficient number, since it is larger than the sum of its proper divisors (1).

2243503 is an equidigital number, since it uses as much as digits as its factorization.

2243503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 2243503 is about 1497.8327677014. The cubic root of 2243503 is about 130.9108225109.

Adding to 2243503 its reverse (3053422), we get a palindrome (5296925).

The spelling of 2243503 in words is "two million, two hundred forty-three thousand, five hundred three".