3128213 has 12 divisors (see below), whose sum is σ = 3485664. Its totient is φ = 2805000.

The previous prime is 3128197. The next prime is 3128227.

3128213 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 3128213 - 2⁴ = 3128197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3128233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12338 + ... + 12588.

It is an arithmetic number, because the mean of its divisors is an integer number (290472).

Almost surely, 2^3128213 is an apocalyptic number.

It is an amenable number.

3128213 is a deficient number, since it is larger than the sum of its proper divisors (357451).

3128213 is a wasteful number, since it uses less digits than its factorization.

3128213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376 (or 365 counting only the distinct ones).

The product of its digits is 288, while the sum is 20.

The square root of 3128213 is about 1768.6754931304. The cubic root of 3128213 is about 146.2509757161.

The spelling of 3128213 in words is "three million, one hundred twenty-eight thousand, two hundred thirteen".