144408281 has 2 divisors, whose sum is σ = 144408282. Its totient is φ = 144408280.

The previous prime is 144408269. The next prime is 144408293. The reversal of 144408281 is 182804441.

It is a balanced prime because it is at equal distance from previous prime (144408269) and next prime (144408293).

It can be written as a sum of positive squares in only one way, i.e., 144384256 + 24025 = 12016^2 + 155^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144408281 is a prime.

It is a super-2 number, since 2×144408281² = 41707503242749922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (144408211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72204140 + 72204141.

It is an arithmetic number, because the mean of its divisors is an integer number (72204141).

Almost surely, 2^144408281 is an apocalyptic number.

It is an amenable number.

144408281 is a deficient number, since it is larger than the sum of its proper divisors (1).

144408281 is an equidigital number, since it uses as much as digits as its factorization.

144408281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8192, while the sum is 32.

The square root of 144408281 is about 12016.9996671382. Note that the first 3 decimals coincide. The cubic root of 144408281 is about 524.6431812754.

The spelling of 144408281 in words is "one hundred forty-four million, four hundred eight thousand, two hundred eighty-one".