204144023329 has 3 divisors (see below), whose sum is σ = 204144475153. Its totient is φ = 204143571506.

The previous prime is 204144023273. The next prime is 204144023353. The reversal of 204144023329 is 923320441402.

The square root of 204144023329 is 451823.

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 is not a de Polignac number, because 204144023329 - 2¹³ = 204144015137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 204144023294 and 204144023303.

It is not an unprimeable number, because it can be changed into a prime (204144023129) 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, 225912 + ... + 677734.

Almost surely, 2^204144023329 is an apocalyptic number.

204144023329 is the 451823-rd square number.

204144023329 is the 225912-nd centered octagonal number.

It is an amenable number.

204144023329 is a deficient number, since it is larger than the sum of its proper divisors (451824).

204144023329 is an frugal number, since it uses more digits than its factorization.

204144023329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903646 (or 451823 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 34.

The spelling of 204144023329 in words is "two hundred four billion, one hundred forty-four million, twenty-three thousand, three hundred twenty-nine".