144481 has 2 divisors, whose sum is σ = 144482. Its totient is φ = 144480.

The previous prime is 144479. The next prime is 144497. The reversal of 144481 is 184441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 144400 + 81 = 380^2 + 9^2 .

It is an emirp because it is prime and its reverse (184441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 144481 - 2¹ = 144479 is a prime.

It is a super-2 number, since 2×144481² = 41749518722, which contains 22 as substring.

Together with 144479, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (144451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72240 + 72241.

It is an arithmetic number, because the mean of its divisors is an integer number (72241).

2¹⁴⁴⁴⁸¹ is an apocalyptic number.

It is an amenable number.

144481 is a deficient number, since it is larger than the sum of its proper divisors (1).

144481 is an equidigital number, since it uses as much as digits as its factorization.

144481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 512, while the sum is 22.

The square root of 144481 is about 380.1065640054. The cubic root of 144481 is about 52.4731230532.

It can be divided in two parts, 1444 and 81, that multiplied together give a square (116964 = 342²).

The spelling of 144481 in words is "one hundred forty-four thousand, four hundred eighty-one".