204135347 has 4 divisors (see below), whose sum is σ = 219838080. Its totient is φ = 188432616.

The previous prime is 204135317. The next prime is 204135353. The reversal of 204135347 is 743531402.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 204135347 - 2¹⁴ = 204118963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204135307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7851347 + ... + 7851372.

It is an arithmetic number, because the mean of its divisors is an integer number (54959520).

Almost surely, 2^204135347 is an apocalyptic number.

204135347 is a deficient number, since it is larger than the sum of its proper divisors (15702733).

204135347 is a wasteful number, since it uses less digits than its factorization.

204135347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15702732.

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 204135347 is about 14287.5941641691. The cubic root of 204135347 is about 588.8066918000.

Adding to 204135347 its reverse (743531402), we get a palindrome (947666749).

The spelling of 204135347 in words is "two hundred four million, one hundred thirty-five thousand, three hundred forty-seven".