144089701965169 has 3 divisors (see below), whose sum is σ = 144089713968907. Its totient is φ = 144089689961432.

The previous prime is 144089701965161. The next prime is 144089701965199. The reversal of 144089701965169 is 961569107980441.

The square root of 144089701965169 is 12003737.

It is a perfect power (a square), and thus also a powerful number.

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 only one way, i.e., 112981061855025 + 31108640110144 = 10629255^2 + 5577512^2 .

It is not a de Polignac number, because 144089701965169 - 2³ = 144089701965161 is a prime.

It is a super-2 number, since 2×144089701965169² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144089701965098 and 144089701965107.

It is not an unprimeable number, because it can be changed into a prime (144089701965161) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 6001869 + ... + 18005605.

Almost surely, 2^{144089701965169} is an apocalyptic number.

144089701965169 is the 12003737-th square number.

144089701965169 is the 6001869-th centered octagonal number.

It is an amenable number.

144089701965169 is a deficient number, since it is larger than the sum of its proper divisors (12003738).

144089701965169 is an frugal number, since it uses more digits than its factorization.

144089701965169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24007474 (or 12003737 counting only the distinct ones).

The product of its (nonzero) digits is 117573120, while the sum is 70.

The spelling of 144089701965169 in words is "one hundred forty-four trillion, eighty-nine billion, seven hundred one million, nine hundred sixty-five thousand, one hundred sixty-nine".