144535441 has 4 divisors (see below), whose sum is σ = 145050084. Its totient is φ = 144020800.

The previous prime is 144535439. The next prime is 144535459.

144535441 is nontrivially palindromic in base 10.

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 124545600 + 19989841 = 11160^2 + 4471^2 .

It is a cyclic number.

It is not a de Polignac number, because 144535441 - 2¹ = 144535439 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144532441) 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, 256900 + ... + 257461.

It is an arithmetic number, because the mean of its divisors is an integer number (36262521).

Almost surely, 2^144535441 is an apocalyptic number.

It is an amenable number.

144535441 is a deficient number, since it is larger than the sum of its proper divisors (514643).

144535441 is an equidigital number, since it uses as much as digits as its factorization.

144535441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514642.

The product of its digits is 19200, while the sum is 31.

The square root of 144535441 is about 12022.2893410531. The cubic root of 144535441 is about 524.7971291752.

The spelling of 144535441 in words is "one hundred forty-four million, five hundred thirty-five thousand, four hundred forty-one".