144842187173 has 2 divisors, whose sum is σ = 144842187174. Its totient is φ = 144842187172.

The previous prime is 144842187157. The next prime is 144842187179. The reversal of 144842187173 is 371781248441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 136206759844 + 8635427329 = 369062^2 + 92927^2 .

It is an emirp because it is prime and its reverse (371781248441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 144842187173 - 2⁴ = 144842187157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144842187179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72421093586 + 72421093587.

It is an arithmetic number, because the mean of its divisors is an integer number (72421093587).

Almost surely, 2^144842187173 is an apocalyptic number.

It is an amenable number.

144842187173 is a deficient number, since it is larger than the sum of its proper divisors (1).

144842187173 is an equidigital number, since it uses as much as digits as its factorization.

144842187173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1204224, while the sum is 50.

The spelling of 144842187173 in words is "one hundred forty-four billion, eight hundred forty-two million, one hundred eighty-seven thousand, one hundred seventy-three".