144396449 has 2 divisors, whose sum is σ = 144396450. Its totient is φ = 144396448.

The previous prime is 144396401. The next prime is 144396467. The reversal of 144396449 is 944693441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133240849 + 11155600 = 11543^2 + 3340^2 .

It is an emirp because it is prime and its reverse (944693441) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144396449 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (144396479) 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, 72198224 + 72198225.

It is an arithmetic number, because the mean of its divisors is an integer number (72198225).

Almost surely, 2^144396449 is an apocalyptic number.

It is an amenable number.

144396449 is a deficient number, since it is larger than the sum of its proper divisors (1).

144396449 is an equidigital number, since it uses as much as digits as its factorization.

144396449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 44.

The square root of 144396449 is about 12016.5073544687. The cubic root of 144396449 is about 524.6288521163.

The spelling of 144396449 in words is "one hundred forty-four million, three hundred ninety-six thousand, four hundred forty-nine".