444164101 has 2 divisors, whose sum is σ = 444164102. Its totient is φ = 444164100.

The previous prime is 444164099. The next prime is 444164113. The reversal of 444164101 is 101461444.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 444113476 + 50625 = 21074^2 + 225^2 .

It is a cyclic number.

It is not a de Polignac number, because 444164101 - 2¹ = 444164099 is a prime.

Together with 444164099, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444164141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222082050 + 222082051.

It is an arithmetic number, because the mean of its divisors is an integer number (222082051).

Almost surely, 2^444164101 is an apocalyptic number.

It is an amenable number.

444164101 is a deficient number, since it is larger than the sum of its proper divisors (1).

444164101 is an equidigital number, since it uses as much as digits as its factorization.

444164101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 444164101 is about 21075.2010903811. The cubic root of 444164101 is about 762.9823380530.

The spelling of 444164101 in words is "four hundred forty-four million, one hundred sixty-four thousand, one hundred one".