204613243 has 8 divisors (see below), whose sum is σ = 208922112. Its totient is φ = 200341416.

The previous prime is 204613181. The next prime is 204613301. The reversal of 204613243 is 342316402.

204613243 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 a de Polignac number, because none of the positive numbers 2^k-204613243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204610243) 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, 2046 + ... + 20332.

It is an arithmetic number, because the mean of its divisors is an integer number (26115264).

Almost surely, 2^204613243 is an apocalyptic number.

204613243 is a deficient number, since it is larger than the sum of its proper divisors (4308869).

204613243 is a wasteful number, since it uses less digits than its factorization.

204613243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18521.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 204613243 is about 14304.3085467282. The cubic root of 204613243 is about 589.2658137639.

Adding to 204613243 its reverse (342316402), we get a palindrome (546929645).

The spelling of 204613243 in words is "two hundred four million, six hundred thirteen thousand, two hundred forty-three".