5442121 has 2 divisors, whose sum is σ = 5442122. Its totient is φ = 5442120.

The previous prime is 5442119. The next prime is 5442149. The reversal of 5442121 is 1212445.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2768896 + 2673225 = 1664^2 + 1635^2 .

It is a cyclic number.

It is not a de Polignac number, because 5442121 - 2¹ = 5442119 is a prime.

Together with 5442119, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (5443121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2721060 + 2721061.

It is an arithmetic number, because the mean of its divisors is an integer number (2721061).

Almost surely, 2^5442121 is an apocalyptic number.

It is an amenable number.

5442121 is a deficient number, since it is larger than the sum of its proper divisors (1).

5442121 is an equidigital number, since it uses as much as digits as its factorization.

5442121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 320, while the sum is 19.

The square root of 5442121 is about 2332.8353992513. The cubic root of 5442121 is about 175.8960409648.

Adding to 5442121 its reverse (1212445), we get a palindrome (6654566).

The spelling of 5442121 in words is "five million, four hundred forty-two thousand, one hundred twenty-one".