144844289 has 2 divisors, whose sum is σ = 144844290. Its totient is φ = 144844288.

The previous prime is 144844261. The next prime is 144844291. The reversal of 144844289 is 982448441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121176064 + 23668225 = 11008^2 + 4865^2 .

It is a cyclic number.

It is not a de Polignac number, because 144844289 - 2⁸ = 144844033 is a prime.

Together with 144844291, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (144844489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72422144 + 72422145.

It is an arithmetic number, because the mean of its divisors is an integer number (72422145).

Almost surely, 2^144844289 is an apocalyptic number.

It is an amenable number.

144844289 is a deficient number, since it is larger than the sum of its proper divisors (1).

144844289 is an equidigital number, since it uses as much as digits as its factorization.

144844289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 294912, while the sum is 44.

The square root of 144844289 is about 12035.1272947152. The cubic root of 144844289 is about 525.1706643943.

The spelling of 144844289 in words is "one hundred forty-four million, eight hundred forty-four thousand, two hundred eighty-nine".