144065 has 4 divisors (see below), whose sum is σ = 172884. Its totient is φ = 115248.

The previous prime is 144061. The next prime is 144071. The reversal of 144065 is 560441.

It is a happy number.

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 36481 + 107584 = 191^2 + 328^2 .

It is a cyclic number.

It is not a de Polignac number, because 144065 - 2² = 144061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 144065.

It is not an unprimeable number, because it can be changed into a prime (144061) 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 in 3 ways as a sum of consecutive naturals, for example, 14402 + ... + 14411.

It is an arithmetic number, because the mean of its divisors is an integer number (43221).

2¹⁴⁴⁰⁶⁵ is an apocalyptic number.

It is an amenable number.

144065 is a deficient number, since it is larger than the sum of its proper divisors (28819).

144065 is an equidigital number, since it uses as much as digits as its factorization.

144065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28818.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 144065 is about 379.5589545775. The cubic root of 144065 is about 52.4227131882.

The spelling of 144065 in words is "one hundred forty-four thousand, sixty-five".