204020133 has 16 divisors (see below), whose sum is σ = 285379200. Its totient is φ = 129469760.

The previous prime is 204019979. The next prime is 204020153. The reversal of 204020133 is 331020402.

It is a cyclic number.

It is not a de Polignac number, because 204020133 - 2⁸ = 204019877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204020153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10338 + ... + 22691.

It is an arithmetic number, because the mean of its divisors is an integer number (17836200).

Almost surely, 2^204020133 is an apocalyptic number.

It is an amenable number.

204020133 is a deficient number, since it is larger than the sum of its proper divisors (81359067).

204020133 is a wasteful number, since it uses less digits than its factorization.

204020133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33132.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 204020133 is about 14283.5616356706. The cubic root of 204020133 is about 588.6958967778.

Adding to 204020133 its reverse (331020402), we get a palindrome (535040535).

The spelling of 204020133 in words is "two hundred four million, twenty thousand, one hundred thirty-three".