144809 has 8 divisors (see below), whose sum is σ = 167808. Its totient is φ = 122400.

The previous prime is 144791. The next prime is 144817. The reversal of 144809 is 908441.

144809 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 144809 - 2¹⁶ = 79273 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 11.

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 144809.

It is not an unprimeable number, because it can be changed into a prime (144829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 884 + ... + 1034.

It is an arithmetic number, because the mean of its divisors is an integer number (20976).

2¹⁴⁴⁸⁰⁹ is an apocalyptic number.

It is an amenable number.

144809 is a deficient number, since it is larger than the sum of its proper divisors (22999).

144809 is a wasteful number, since it uses less digits than its factorization.

144809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 144809 is about 380.5377773625. The cubic root of 144809 is about 52.5128011112.

The spelling of 144809 in words is "one hundred forty-four thousand, eight hundred nine".