144001441 has 4 divisors (see below), whose sum is σ = 152472132. Its totient is φ = 135530752.

The previous prime is 144001433. The next prime is 144001463. The reversal of 144001441 is 144100441.

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 130051216 + 13950225 = 11404^2 + 3735^2 .

It is a cyclic number.

It is not a de Polignac number, because 144001441 - 2³ = 144001433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144005441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4235320 + ... + 4235353.

It is an arithmetic number, because the mean of its divisors is an integer number (38118033).

Almost surely, 2^144001441 is an apocalyptic number.

It is an amenable number.

144001441 is a deficient number, since it is larger than the sum of its proper divisors (8470691).

144001441 is an equidigital number, since it uses as much as digits as its factorization.

144001441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8470690.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 144001441 is about 12000.0600415165. The cubic root of 144001441 is about 524.1500272102.

Adding to 144001441 its reverse (144100441), we get a palindrome (288101882).

The spelling of 144001441 in words is "one hundred forty-four million, one thousand, four hundred forty-one".