444121 has 2 divisors, whose sum is σ = 444122. Its totient is φ = 444120.

The previous prime is 444113. The next prime is 444127. The reversal of 444121 is 121444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 318096 + 126025 = 564^2 + 355^2 .

It is a cyclic number.

It is not a de Polignac number, because 444121 - 2³ = 444113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 444095 and 444104.

It is not a weakly prime, because it can be changed into another prime (444127) 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 as a sum of consecutive naturals, namely, 222060 + 222061.

It is an arithmetic number, because the mean of its divisors is an integer number (222061).

2⁴⁴⁴¹²¹ is an apocalyptic number.

It is an amenable number.

444121 is a deficient number, since it is larger than the sum of its proper divisors (1).

444121 is an equidigital number, since it uses as much as digits as its factorization.

444121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 128, while the sum is 16.

The square root of 444121 is about 666.4240391823. The cubic root of 444121 is about 76.2957657711.

Adding to 444121 its reverse (121444), we get a palindrome (565565).

It can be divided in two parts, 444 and 121, that added together give a palindrome (565).

The spelling of 444121 in words is "four hundred forty-four thousand, one hundred twenty-one", and thus it is an iban number.