144789 has 12 divisors (see below), whose sum is σ = 206304. Its totient is φ = 90304.

The previous prime is 144779. The next prime is 144791. The reversal of 144789 is 987441.

144789 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 144789 - 2⁴ = 144773 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144709) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 784 + ... + 950.

It is an arithmetic number, because the mean of its divisors is an integer number (17192).

2¹⁴⁴⁷⁸⁹ is an apocalyptic number.

It is an amenable number.

144789 is a deficient number, since it is larger than the sum of its proper divisors (61515).

144789 is a wasteful number, since it uses less digits than its factorization.

144789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204 (or 187 counting only the distinct ones).

The product of its digits is 8064, while the sum is 33.

The square root of 144789 is about 380.5114978552. The cubic root of 144789 is about 52.5103834338.

The spelling of 144789 in words is "one hundred forty-four thousand, seven hundred eighty-nine".