204112147 has 4 divisors (see below), whose sum is σ = 205292160. Its totient is φ = 202932136.

The previous prime is 204112127. The next prime is 204112163. The reversal of 204112147 is 741211402.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204112147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204112127) 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, 589747 + ... + 590092.

It is an arithmetic number, because the mean of its divisors is an integer number (51323040).

Almost surely, 2^204112147 is an apocalyptic number.

204112147 is a deficient number, since it is larger than the sum of its proper divisors (1180013).

204112147 is a wasteful number, since it uses less digits than its factorization.

204112147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1180012.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 204112147 is about 14286.7822479381. The cubic root of 204112147 is about 588.7843849776.

Adding to 204112147 its reverse (741211402), we get a palindrome (945323549).

The spelling of 204112147 in words is "two hundred four million, one hundred twelve thousand, one hundred forty-seven".