44541221 has 2 divisors, whose sum is σ = 44541222. Its totient is φ = 44541220.

The previous prime is 44541209. The next prime is 44541223. The reversal of 44541221 is 12214544.

44541221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37576900 + 6964321 = 6130^2 + 2639^2 .

It is a cyclic number.

It is not a de Polignac number, because 44541221 - 2¹⁸ = 44279077 is a prime.

Together with 44541223, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44541223) 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, 22270610 + 22270611.

It is an arithmetic number, because the mean of its divisors is an integer number (22270611).

Almost surely, 2^44541221 is an apocalyptic number.

It is an amenable number.

44541221 is a deficient number, since it is larger than the sum of its proper divisors (1).

44541221 is an equidigital number, since it uses as much as digits as its factorization.

44541221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1280, while the sum is 23.

The square root of 44541221 is about 6673.9209614738. The cubic root of 44541221 is about 354.4764377662.

Adding to 44541221 its reverse (12214544), we get a palindrome (56755765).

The spelling of 44541221 in words is "forty-four million, five hundred forty-one thousand, two hundred twenty-one".