2213045 has 4 divisors (see below), whose sum is σ = 2655660. Its totient is φ = 1770432.

The previous prime is 2213039. The next prime is 2213053. The reversal of 2213045 is 5403122.

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 1044484 + 1168561 = 1022^2 + 1081^2 .

It is a cyclic number.

It is not a de Polignac number, because 2213045 - 2¹² = 2208949 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221300 + ... + 221309.

It is an arithmetic number, because the mean of its divisors is an integer number (663915).

2^2213045 is an apocalyptic number.

It is an amenable number.

2213045 is a deficient number, since it is larger than the sum of its proper divisors (442615).

2213045 is an equidigital number, since it uses as much as digits as its factorization.

2213045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442614.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 2213045 is about 1487.6306665298. The cubic root of 2213045 is about 130.3157021317.

Adding to 2213045 its reverse (5403122), we get a palindrome (7616167).

The spelling of 2213045 in words is "two million, two hundred thirteen thousand, forty-five".