144449777 has 2 divisors, whose sum is σ = 144449778. Its totient is φ = 144449776.

The previous prime is 144449741. The next prime is 144449779. The reversal of 144449777 is 777944441.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108076816 + 36372961 = 10396^2 + 6031^2 .

It is a cyclic number.

It is not a de Polignac number, because 144449777 - 2¹⁰ = 144448753 is a prime.

Together with 144449779, 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 (144449779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72224888 + 72224889.

It is an arithmetic number, because the mean of its divisors is an integer number (72224889).

Almost surely, 2^144449777 is an apocalyptic number.

It is an amenable number.

144449777 is a deficient number, since it is larger than the sum of its proper divisors (1).

144449777 is an equidigital number, since it uses as much as digits as its factorization.

144449777 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 790272, while the sum is 47.

The square root of 144449777 is about 12018.7260972201. The cubic root of 144449777 is about 524.6934288751.

The spelling of 144449777 in words is "one hundred forty-four million, four hundred forty-nine thousand, seven hundred seventy-seven".