144646344949 has 2 divisors, whose sum is σ = 144646344950. Its totient is φ = 144646344948.

The previous prime is 144646344923. The next prime is 144646344989. The reversal of 144646344949 is 949443646441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114933204324 + 29713140625 = 339018^2 + 172375^2 .

It is a cyclic number.

It is not a de Polignac number, because 144646344949 - 2⁵ = 144646344917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 144646344893 and 144646344902.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144646344919) 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, 72323172474 + 72323172475.

It is an arithmetic number, because the mean of its divisors is an integer number (72323172475).

Almost surely, 2^144646344949 is an apocalyptic number.

It is an amenable number.

144646344949 is a deficient number, since it is larger than the sum of its proper divisors (1).

144646344949 is an equidigital number, since it uses as much as digits as its factorization.

144646344949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35831808, while the sum is 58.

The spelling of 144646344949 in words is "one hundred forty-four billion, six hundred forty-six million, three hundred forty-four thousand, nine hundred forty-nine".