44121001 has 4 divisors (see below), whose sum is σ = 46716372. Its totient is φ = 41525632.

The previous prime is 44120971. The next prime is 44121017. The reversal of 44121001 is 10012144.

44121001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 38142976 + 5978025 = 6176^2 + 2445^2 .

It is a cyclic number.

It is not a de Polignac number, because 44121001 - 2¹⁹ = 43596713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44121071) 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 in 3 ways as a sum of consecutive naturals, for example, 1297660 + ... + 1297693.

It is an arithmetic number, because the mean of its divisors is an integer number (11679093).

Almost surely, 2^44121001 is an apocalyptic number.

It is an amenable number.

44121001 is a deficient number, since it is larger than the sum of its proper divisors (2595371).

44121001 is a wasteful number, since it uses less digits than its factorization.

44121001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2595370.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 44121001 is about 6642.3641122721. The cubic root of 44121001 is about 353.3581552713.

Adding to 44121001 its reverse (10012144), we get a palindrome (54133145).

The spelling of 44121001 in words is "forty-four million, one hundred twenty-one thousand, one".