144442073 has 2 divisors, whose sum is σ = 144442074. Its totient is φ = 144442072.

The previous prime is 144442063. The next prime is 144442087. The reversal of 144442073 is 370244441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 128981449 + 15460624 = 11357^2 + 3932^2 .

It is a cyclic number.

It is not a de Polignac number, because 144442073 - 2¹⁶ = 144376537 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (144442003) 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, 72221036 + 72221037.

It is an arithmetic number, because the mean of its divisors is an integer number (72221037).

Almost surely, 2^144442073 is an apocalyptic number.

It is an amenable number.

144442073 is a deficient number, since it is larger than the sum of its proper divisors (1).

144442073 is an equidigital number, since it uses as much as digits as its factorization.

144442073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10752, while the sum is 29.

The square root of 144442073 is about 12018.4055930893. The cubic root of 144442073 is about 524.6841008117.

The spelling of 144442073 in words is "one hundred forty-four million, four hundred forty-two thousand, seventy-three".