2223245 has 4 divisors (see below), whose sum is σ = 2667900. Its totient is φ = 1778592.

The previous prime is 2223233. The next prime is 2223253. The reversal of 2223245 is 5423222.

2223245 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 can be written as a sum of positive squares in 2 ways, for example, as 232324 + 1990921 = 482^2 + 1411^2 .

It is a cyclic number.

It is not a de Polignac number, because 2223245 - 2¹⁴ = 2206861 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 222320 + ... + 222329.

It is an arithmetic number, because the mean of its divisors is an integer number (666975).

2^2223245 is an apocalyptic number.

It is an amenable number.

2223245 is a deficient number, since it is larger than the sum of its proper divisors (444655).

2223245 is an equidigital number, since it uses as much as digits as its factorization.

2223245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444654.

The product of its digits is 960, while the sum is 20.

The square root of 2223245 is about 1491.0549956323. The cubic root of 2223245 is about 130.5156051664.

Adding to 2223245 its reverse (5423222), we get a palindrome (7646467).

The spelling of 2223245 in words is "two million, two hundred twenty-three thousand, two hundred forty-five".