4128213 has 4 divisors (see below), whose sum is σ = 5504288. Its totient is φ = 2752140.

The previous prime is 4128199. The next prime is 4128217. The reversal of 4128213 is 3128214.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 4128213 - 2⁵ = 4128181 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4128213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4128217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 688033 + ... + 688038.

It is an arithmetic number, because the mean of its divisors is an integer number (1376072).

Almost surely, 2^4128213 is an apocalyptic number.

It is an amenable number.

4128213 is a deficient number, since it is larger than the sum of its proper divisors (1376075).

4128213 is a wasteful number, since it uses less digits than its factorization.

4128213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1376074.

The product of its digits is 384, while the sum is 21.

The square root of 4128213 is about 2031.8004331134. The cubic root of 4128213 is about 160.4183453208.

Subtracting from 4128213 its reverse (3128214), we obtain a palindrome (999999).

The spelling of 4128213 in words is "four million, one hundred twenty-eight thousand, two hundred thirteen".