144085 has 4 divisors (see below), whose sum is σ = 172908. Its totient is φ = 115264.

The previous prime is 144073. The next prime is 144103. The reversal of 144085 is 580441.

144085 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 580441 = 263 ⋅2207.

It can be written as a sum of positive squares in 2 ways, for example, as 103684 + 40401 = 322^2 + 201^2 .

It is a cyclic number.

It is not a de Polignac number, because 144085 - 2⁹ = 143573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14404 + ... + 14413.

It is an arithmetic number, because the mean of its divisors is an integer number (43227).

2¹⁴⁴⁰⁸⁵ is an apocalyptic number.

It is an amenable number.

144085 is a deficient number, since it is larger than the sum of its proper divisors (28823).

144085 is an equidigital number, since it uses as much as digits as its factorization.

144085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28822.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 144085 is about 379.5853000315. The cubic root of 144085 is about 52.4251389584.

The spelling of 144085 in words is "one hundred forty-four thousand, eighty-five".