144544441 has 8 divisors (see below), whose sum is σ = 147774024. Its totient is φ = 141342720.

The previous prime is 144544423. The next prime is 144544447. The reversal of 144544441 is 144445441.

144544441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 40000 + 144504441 = 200^2 + 12021^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 144544441 - 2⁹ = 144543929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144544447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3705 + ... + 17401.

It is an arithmetic number, because the mean of its divisors is an integer number (18471753).

Almost surely, 2^144544441 is an apocalyptic number.

It is an amenable number.

144544441 is a deficient number, since it is larger than the sum of its proper divisors (3229583).

144544441 is a wasteful number, since it uses less digits than its factorization.

144544441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13931.

The product of its digits is 20480, while the sum is 31.

The square root of 144544441 is about 12022.6636399760. The cubic root of 144544441 is about 524.8080217196.

Adding to 144544441 its reverse (144445441), we get a palindrome (288989882).

The spelling of 144544441 in words is "one hundred forty-four million, five hundred forty-four thousand, four hundred forty-one".