44005121 has 4 divisors (see below), whose sum is σ = 46321200. Its totient is φ = 41689044.

The previous prime is 44005111. The next prime is 44005139. The reversal of 44005121 is 12150044.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 44005121 - 2¹⁸ = 43742977 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 44005121.

It is not an unprimeable number, because it can be changed into a prime (44005111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1158011 + ... + 1158048.

It is an arithmetic number, because the mean of its divisors is an integer number (11580300).

Almost surely, 2^44005121 is an apocalyptic number.

It is an amenable number.

44005121 is a deficient number, since it is larger than the sum of its proper divisors (2316079).

44005121 is a wasteful number, since it uses less digits than its factorization.

44005121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2316078.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 44005121 is about 6633.6355793788. The cubic root of 44005121 is about 353.0485291481.

Adding to 44005121 its reverse (12150044), we get a palindrome (56155165).

The spelling of 44005121 in words is "forty-four million, five thousand, one hundred twenty-one".