144511441 has 4 divisors (see below), whose sum is σ = 153012132. Its totient is φ = 136010752.

The previous prime is 144511439. The next prime is 144511447. The reversal of 144511441 is 144115441.

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 46580625 + 97930816 = 6825^2 + 9896^2 .

It is a cyclic number.

It is not a de Polignac number, because 144511441 - 2¹ = 144511439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144511447) 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, 4250320 + ... + 4250353.

It is an arithmetic number, because the mean of its divisors is an integer number (38253033).

Almost surely, 2^144511441 is an apocalyptic number.

It is an amenable number.

144511441 is a deficient number, since it is larger than the sum of its proper divisors (8500691).

144511441 is an equidigital number, since it uses as much as digits as its factorization.

144511441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8500690.

The product of its digits is 1280, while the sum is 25.

The square root of 144511441 is about 12021.2911536157. The cubic root of 144511441 is about 524.7680801793.

Adding to 144511441 its reverse (144115441), we get a palindrome (288626882).

The spelling of 144511441 in words is "one hundred forty-four million, five hundred eleven thousand, four hundred forty-one".