2213128 has 16 divisors (see below), whose sum is σ = 4393980. Its totient is φ = 1041408.

The previous prime is 2213093. The next prime is 2213137. The reversal of 2213128 is 8213122.

It can be written as a sum of positive squares in 2 ways, for example, as 1800964 + 412164 = 1342^2 + 642^2 .

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8001 + ... + 8272.

2^2213128 is an apocalyptic number.

It is an amenable number.

2213128 is a deficient number, since it is larger than the sum of its proper divisors (2180852).

2213128 is a wasteful number, since it uses less digits than its factorization.

2213128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16296 (or 16292 counting only the distinct ones).

The product of its digits is 192, while the sum is 19.

The square root of 2213128 is about 1487.6585629774. The cubic root of 2213128 is about 130.3173312699.

The spelling of 2213128 in words is "two million, two hundred thirteen thousand, one hundred twenty-eight".