2215243 has 4 divisors (see below), whose sum is σ = 2231320. Its totient is φ = 2199168.

The previous prime is 2215237. The next prime is 2215277. The reversal of 2215243 is 3425122.

2215243 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 a cyclic number.

It is not a de Polignac number, because 2215243 - 2⁵ = 2215211 is a prime.

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 2215243.

It is not an unprimeable number, because it can be changed into a prime (2215943) 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, 7830 + ... + 8107.

It is an arithmetic number, because the mean of its divisors is an integer number (557830).

2^2215243 is an apocalyptic number.

2215243 is a deficient number, since it is larger than the sum of its proper divisors (16077).

2215243 is a wasteful number, since it uses less digits than its factorization.

2215243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16076.

The product of its digits is 480, while the sum is 19.

The square root of 2215243 is about 1488.3692418214. The cubic root of 2215243 is about 130.3588311141.

The spelling of 2215243 in words is "two million, two hundred fifteen thousand, two hundred forty-three".