144429872173 has 2 divisors, whose sum is σ = 144429872174. Its totient is φ = 144429872172.

The previous prime is 144429872143. The next prime is 144429872177. The reversal of 144429872173 is 371278924441.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81620490249 + 62809381924 = 285693^2 + 250618^2 .

It is a cyclic number.

It is not a de Polignac number, because 144429872173 - 2⁹ = 144429871661 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 144429872173.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144429872177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72214936086 + 72214936087.

It is an arithmetic number, because the mean of its divisors is an integer number (72214936087).

Almost surely, 2^144429872173 is an apocalyptic number.

It is an amenable number.

144429872173 is a deficient number, since it is larger than the sum of its proper divisors (1).

144429872173 is an equidigital number, since it uses as much as digits as its factorization.

144429872173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2709504, while the sum is 52.

The spelling of 144429872173 in words is "one hundred forty-four billion, four hundred twenty-nine million, eight hundred seventy-two thousand, one hundred seventy-three".