144322536161 has 8 divisors (see below), whose sum is σ = 144422085000. Its totient is φ = 144223027200.

The previous prime is 144322536151. The next prime is 144322536247. The reversal of 144322536161 is 161635223441.

It can be written as a sum of positive squares in 4 ways, for example, as 20770286161 + 123552250000 = 144119^2 + 351500^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144322536161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144322536131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10886465 + ... + 10899713.

It is an arithmetic number, because the mean of its divisors is an integer number (18052760625).

Almost surely, 2^144322536161 is an apocalyptic number.

It is an amenable number.

144322536161 is a deficient number, since it is larger than the sum of its proper divisors (99548839).

144322536161 is a wasteful number, since it uses less digits than its factorization.

144322536161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19939.

The product of its digits is 103680, while the sum is 38.

The spelling of 144322536161 in words is "one hundred forty-four billion, three hundred twenty-two million, five hundred thirty-six thousand, one hundred sixty-one".