44543121 has 16 divisors (see below), whose sum is σ = 68550528. Its totient is φ = 25200000.

The previous prime is 44543117. The next prime is 44543129. The reversal of 44543121 is 12134544.

44543121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 44543121 - 2² = 44543117 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 44543091 and 44543100.

It is not an unprimeable number, because it can be changed into a prime (44543129) 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 15 ways as a sum of consecutive naturals, for example, 8380 + ... + 12621.

It is an arithmetic number, because the mean of its divisors is an integer number (4284408).

Almost surely, 2^44543121 is an apocalyptic number.

It is an amenable number.

44543121 is a deficient number, since it is larger than the sum of its proper divisors (24007407).

44543121 is a wasteful number, since it uses less digits than its factorization.

44543121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21112.

The product of its digits is 1920, while the sum is 24.

The square root of 44543121 is about 6674.0633050639. The cubic root of 44543121 is about 354.4814780087.

Adding to 44543121 its reverse (12134544), we get a palindrome (56677665).

The spelling of 44543121 in words is "forty-four million, five hundred forty-three thousand, one hundred twenty-one".