204102247 has 8 divisors (see below), whose sum is σ = 208645056. Its totient is φ = 199567872.

The previous prime is 204102191. The next prime is 204102257. The reversal of 204102247 is 742201402.

It is a happy number.

204102247 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 204102247 - 2¹¹ = 204100199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204102257) 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, 93723 + ... + 95875.

It is an arithmetic number, because the mean of its divisors is an integer number (26080632).

Almost surely, 2^204102247 is an apocalyptic number.

204102247 is a deficient number, since it is larger than the sum of its proper divisors (4542809).

204102247 is a wasteful number, since it uses less digits than its factorization.

204102247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4217.

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 204102247 is about 14286.4357696383. The cubic root of 204102247 is about 588.7748656035.

Adding to 204102247 its reverse (742201402), we get a palindrome (946303649).

The spelling of 204102247 in words is "two hundred four million, one hundred two thousand, two hundred forty-seven".