5443121 has 2 divisors, whose sum is σ = 5443122. Its totient is φ = 5443120.

The previous prime is 5443103. The next prime is 5443127. The reversal of 5443121 is 1213445.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5340721 + 102400 = 2311^2 + 320^2 .

It is a cyclic number.

It is not a de Polignac number, because 5443121 - 2¹⁰ = 5442097 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 5443093 and 5443102.

It is not a weakly prime, because it can be changed into another prime (5443127) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2721560 + 2721561.

It is an arithmetic number, because the mean of its divisors is an integer number (2721561).

Almost surely, 2^5443121 is an apocalyptic number.

It is an amenable number.

5443121 is a deficient number, since it is larger than the sum of its proper divisors (1).

5443121 is an equidigital number, since it uses as much as digits as its factorization.

5443121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 480, while the sum is 20.

The square root of 5443121 is about 2333.0497208589. The cubic root of 5443121 is about 175.9068140480.

Adding to 5443121 its reverse (1213445), we get a palindrome (6656566).

The spelling of 5443121 in words is "five million, four hundred forty-three thousand, one hundred twenty-one".