144344209 has 2 divisors, whose sum is σ = 144344210. Its totient is φ = 144344208.

The previous prime is 144344203. The next prime is 144344219. The reversal of 144344209 is 902443441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106151809 + 38192400 = 10303^2 + 6180^2 .

It is a cyclic number.

It is not a de Polignac number, because 144344209 - 2¹⁷ = 144213137 is a prime.

It is a super-3 number, since 3×144344209³ (a number of 25 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (144344203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72172104 + 72172105.

It is an arithmetic number, because the mean of its divisors is an integer number (72172105).

Almost surely, 2^144344209 is an apocalyptic number.

It is an amenable number.

144344209 is a deficient number, since it is larger than the sum of its proper divisors (1).

144344209 is an equidigital number, since it uses as much as digits as its factorization.

144344209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 144344209 is about 12014.3334813047. Note that the first 3 decimals coincide. The cubic root of 144344209 is about 524.5655774371.

The spelling of 144344209 in words is "one hundred forty-four million, three hundred forty-four thousand, two hundred nine".