144743549 has 2 divisors, whose sum is σ = 144743550. Its totient is φ = 144743548.

The previous prime is 144743537. The next prime is 144743581. The reversal of 144743549 is 945347441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 134977924 + 9765625 = 11618^2 + 3125^2 .

It is a cyclic number.

It is not a de Polignac number, because 144743549 - 2⁸ = 144743293 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144743509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72371774 + 72371775.

It is an arithmetic number, because the mean of its divisors is an integer number (72371775).

Almost surely, 2^144743549 is an apocalyptic number.

It is an amenable number.

144743549 is a deficient number, since it is larger than the sum of its proper divisors (1).

144743549 is an equidigital number, since it uses as much as digits as its factorization.

144743549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 41.

The square root of 144743549 is about 12030.9413181180. The cubic root of 144743549 is about 525.0488831278.

The spelling of 144743549 in words is "one hundred forty-four million, seven hundred forty-three thousand, five hundred forty-nine".