4441164121 has 2 divisors, whose sum is σ = 4441164122. Its totient is φ = 4441164120.

The previous prime is 4441164107. The next prime is 4441164127. The reversal of 4441164121 is 1214611444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4303360000 + 137804121 = 65600^2 + 11739^2 .

It is a cyclic number.

It is not a de Polignac number, because 4441164121 - 2⁵ = 4441164089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4441164121.

It is not a weakly prime, because it can be changed into another prime (4441164127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2220582060 + 2220582061.

It is an arithmetic number, because the mean of its divisors is an integer number (2220582061).

Almost surely, 2^4441164121 is an apocalyptic number.

It is an amenable number.

4441164121 is a deficient number, since it is larger than the sum of its proper divisors (1).

4441164121 is an equidigital number, since it uses as much as digits as its factorization.

4441164121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3072, while the sum is 28.

The square root of 4441164121 is about 66642.0596995621. The cubic root of 4441164121 is about 1643.7367846654.

Adding to 4441164121 its reverse (1214611444), we get a palindrome (5655775565).

The spelling of 4441164121 in words is "four billion, four hundred forty-one million, one hundred sixty-four thousand, one hundred twenty-one".