204243053 has 16 divisors (see below), whose sum is σ = 236390400. Its totient is φ = 172854000.

The previous prime is 204243047. The next prime is 204243101. The reversal of 204243053 is 350342402.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204243053 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 (204243353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 209858 + ... + 210828.

It is an arithmetic number, because the mean of its divisors is an integer number (14774400).

Almost surely, 2^204243053 is an apocalyptic number.

It is an amenable number.

204243053 is a deficient number, since it is larger than the sum of its proper divisors (32147347).

204243053 is a wasteful number, since it uses less digits than its factorization.

204243053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1328.

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 204243053 is about 14291.3628811251. The cubic root of 204243053 is about 588.9102290923.

Adding to 204243053 its reverse (350342402), we get a palindrome (554585455).

The spelling of 204243053 in words is "two hundred four million, two hundred forty-three thousand, fifty-three".