4134221 has 16 divisors (see below), whose sum is σ = 5136768. Its totient is φ = 3240000.

The previous prime is 4134217. The next prime is 4134257. The reversal of 4134221 is 1224314.

It is a cyclic number.

It is not a de Polignac number, because 4134221 - 2² = 4134217 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 4134221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4134421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16346 + ... + 16596.

It is an arithmetic number, because the mean of its divisors is an integer number (321048).

Almost surely, 2^4134221 is an apocalyptic number.

It is an amenable number.

4134221 is a deficient number, since it is larger than the sum of its proper divisors (1002547).

4134221 is a wasteful number, since it uses less digits than its factorization.

4134221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452.

The product of its digits is 192, while the sum is 17.

The square root of 4134221 is about 2033.2783872357. The cubic root of 4134221 is about 160.4961292791.

Adding to 4134221 its reverse (1224314), we get a palindrome (5358535).

The spelling of 4134221 in words is "four million, one hundred thirty-four thousand, two hundred twenty-one".