144447161 has 2 divisors, whose sum is σ = 144447162. Its totient is φ = 144447160.

The previous prime is 144447119. The next prime is 144447229. The reversal of 144447161 is 161744441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 138415225 + 6031936 = 11765^2 + 2456^2 .

It is a cyclic number.

It is not a de Polignac number, because 144447161 - 2¹⁸ = 144185017 is a prime.

It is not a weakly prime, because it can be changed into another prime (144447361) 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, 72223580 + 72223581.

It is an arithmetic number, because the mean of its divisors is an integer number (72223581).

Almost surely, 2^144447161 is an apocalyptic number.

It is an amenable number.

144447161 is a deficient number, since it is larger than the sum of its proper divisors (1).

144447161 is an equidigital number, since it uses as much as digits as its factorization.

144447161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10752, while the sum is 32.

The square root of 144447161 is about 12018.6172665577. The cubic root of 144447161 is about 524.6902614390.

The spelling of 144447161 in words is "one hundred forty-four million, four hundred forty-seven thousand, one hundred sixty-one".