2243515 has 4 divisors (see below), whose sum is σ = 2692224. Its totient is φ = 1794808.

The previous prime is 2243503. The next prime is 2243531. The reversal of 2243515 is 5153422.

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

It is a cyclic number.

It is not a de Polignac number, because 2243515 - 2¹³ = 2235323 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 224347 + ... + 224356.

It is an arithmetic number, because the mean of its divisors is an integer number (673056).

2^2243515 is an apocalyptic number.

2243515 is a deficient number, since it is larger than the sum of its proper divisors (448709).

2243515 is an equidigital number, since it uses as much as digits as its factorization.

2243515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448708.

The product of its digits is 1200, while the sum is 22.

The square root of 2243515 is about 1497.8367734837. The cubic root of 2243515 is about 130.9110559148.

Adding to 2243515 its reverse (5153422), we get a palindrome (7396937).

The spelling of 2243515 in words is "two million, two hundred forty-three thousand, five hundred fifteen".