4143121 has 16 divisors (see below), whose sum is σ = 4700160. Its totient is φ = 3628800.

The previous prime is 4143109. The next prime is 4143163. The reversal of 4143121 is 1213414.

4143121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 4143121 - 2⁷ = 4142993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4143095 and 4143104.

It is not an unprimeable number, because it can be changed into a prime (4143101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32560 + ... + 32686.

It is an arithmetic number, because the mean of its divisors is an integer number (293760).

Almost surely, 2^4143121 is an apocalyptic number.

It is an amenable number.

4143121 is a deficient number, since it is larger than the sum of its proper divisors (557039).

4143121 is a wasteful number, since it uses less digits than its factorization.

4143121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264.

The product of its digits is 96, while the sum is 16.

The square root of 4143121 is about 2035.4657943576. The cubic root of 4143121 is about 160.6112168019.

Adding to 4143121 its reverse (1213414), we get a palindrome (5356535).

The spelling of 4143121 in words is "four million, one hundred forty-three thousand, one hundred twenty-one".