144109 has 12 divisors (see below), whose sum is σ = 178524. Its totient is φ = 115584.

The previous prime is 144103. The next prime is 144139. The reversal of 144109 is 901441.

It can be written as a sum of positive squares in 2 ways, for example, as 122500 + 21609 = 350^2 + 147^2 .

It is not a de Polignac number, because 144109 - 2⁷ = 143981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144103) 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, 747 + ... + 919.

It is an arithmetic number, because the mean of its divisors is an integer number (14877).

2¹⁴⁴¹⁰⁹ is an apocalyptic number.

It is an amenable number.

144109 is a deficient number, since it is larger than the sum of its proper divisors (34415).

144109 is a wasteful number, since it uses less digits than its factorization.

144109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204 (or 197 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 144109 is about 379.6169121628. The cubic root of 144109 is about 52.4280495863.

It can be divided in two parts, 144 and 109, that added together give a triangular number (253 = T₂₂).

The spelling of 144109 in words is "one hundred forty-four thousand, one hundred nine".