144318587173 has 4 divisors (see below), whose sum is σ = 144319622508. Its totient is φ = 144317551840.

The previous prime is 144318587137. The next prime is 144318587177. The reversal of 144318587173 is 371785813441.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 43081983844 + 101236603329 = 207562^2 + 318177^2 .

It is a cyclic number.

It is not a de Polignac number, because 144318587173 - 2²⁹ = 143781716261 is a prime.

It is a super-2 number, since 2×144318587173² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144318587173.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144318587177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 268648 + ... + 600673.

It is an arithmetic number, because the mean of its divisors is an integer number (36079905627).

Almost surely, 2^144318587173 is an apocalyptic number.

It is an amenable number.

144318587173 is a deficient number, since it is larger than the sum of its proper divisors (1035335).

144318587173 is an equidigital number, since it uses as much as digits as its factorization.

144318587173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1035334.

The product of its digits is 2257920, while the sum is 52.

The spelling of 144318587173 in words is "one hundred forty-four billion, three hundred eighteen million, five hundred eighty-seven thousand, one hundred seventy-three".