4144021601 has 2 divisors, whose sum is σ = 4144021602. Its totient is φ = 4144021600.

The previous prime is 4144021591. The next prime is 4144021639. The reversal of 4144021601 is 1061204414.

It is a happy number.

4144021601 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2376660001 + 1767361600 = 48751^2 + 42040^2 .

It is a cyclic number.

It is not a de Polignac number, because 4144021601 - 2²⁶ = 4076912737 is a prime.

It is not a weakly prime, because it can be changed into another prime (4144023601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2072010800 + 2072010801.

It is an arithmetic number, because the mean of its divisors is an integer number (2072010801).

Almost surely, 2^4144021601 is an apocalyptic number.

It is an amenable number.

4144021601 is a deficient number, since it is larger than the sum of its proper divisors (1).

4144021601 is an equidigital number, since it uses as much as digits as its factorization.

4144021601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 4144021601 is about 64374.0755351096. The cubic root of 4144021601 is about 1606.2285345161.

The spelling of 4144021601 in words is "four billion, one hundred forty-four million, twenty-one thousand, six hundred one".