144330161 has 2 divisors, whose sum is σ = 144330162. Its totient is φ = 144330160.

The previous prime is 144330133. The next prime is 144330163. The reversal of 144330161 is 161033441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91680625 + 52649536 = 9575^2 + 7256^2 .

It is an emirp because it is prime and its reverse (161033441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 144330161 - 2⁶ = 144330097 is a prime.

Together with 144330163, 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 (144330163) 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, 72165080 + 72165081.

It is an arithmetic number, because the mean of its divisors is an integer number (72165081).

Almost surely, 2^144330161 is an apocalyptic number.

It is an amenable number.

144330161 is a deficient number, since it is larger than the sum of its proper divisors (1).

144330161 is an equidigital number, since it uses as much as digits as its factorization.

144330161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 144330161 is about 12013.7488320674. The cubic root of 144330161 is about 524.5485594670.

The spelling of 144330161 in words is "one hundred forty-four million, three hundred thirty thousand, one hundred sixty-one".