204068521 has 8 divisors (see below), whose sum is σ = 209246688. Its totient is φ = 198900000.

The previous prime is 204068519. The next prime is 204068549. The reversal of 204068521 is 125860402.

204068521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 204068521 - 2¹ = 204068519 is a prime.

It is a super-2 number, since 2×204068521² = 83287922526254882, which 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 204068521.

It is not an unprimeable number, because it can be changed into a prime (204068591) 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, 61146 + ... + 64396.

It is an arithmetic number, because the mean of its divisors is an integer number (26155836).

Almost surely, 2^204068521 is an apocalyptic number.

It is an amenable number.

204068521 is a deficient number, since it is larger than the sum of its proper divisors (5178167).

204068521 is a wasteful number, since it uses less digits than its factorization.

204068521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4823.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 204068521 is about 14285.2553704860. The cubic root of 204068521 is about 588.7424339584.

The spelling of 204068521 in words is "two hundred four million, sixty-eight thousand, five hundred twenty-one".