144000509 has 2 divisors, whose sum is σ = 144000510. Its totient is φ = 144000508.

The previous prime is 144000503. The next prime is 144000517. The reversal of 144000509 is 905000441.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108264025 + 35736484 = 10405^2 + 5978^2 .

It is an emirp because it is prime and its reverse (905000441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 144000509 - 2⁸ = 144000253 is a prime.

It is a super-2 number, since 2×144000509² = 41472293184518162, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144000503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72000254 + 72000255.

It is an arithmetic number, because the mean of its divisors is an integer number (72000255).

Almost surely, 2^144000509 is an apocalyptic number.

It is an amenable number.

144000509 is a deficient number, since it is larger than the sum of its proper divisors (1).

144000509 is an equidigital number, since it uses as much as digits as its factorization.

144000509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 144000509 is about 12000.0212083146. The cubic root of 144000509 is about 524.1488964139.

The spelling of 144000509 in words is "one hundred forty-four million, five hundred nine", and thus it is an aban number.