204031105 has 16 divisors (see below), whose sum is σ = 249345360. Its totient is φ = 160247808.

The previous prime is 204031103. The next prime is 204031109. The reversal of 204031105 is 501130402.

It can be written as a sum of positive squares in 8 ways, for example, as 369664 + 203661441 = 608^2 + 14271^2 .

It is a cyclic number.

It is not a de Polignac number, because 204031105 - 2¹ = 204031103 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204031103) 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, 59929 + ... + 63241.

It is an arithmetic number, because the mean of its divisors is an integer number (15584085).

Almost surely, 2^204031105 is an apocalyptic number.

It is an amenable number.

204031105 is a deficient number, since it is larger than the sum of its proper divisors (45314255).

204031105 is a wasteful number, since it uses less digits than its factorization.

204031105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3540.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 204031105 is about 14283.9457083818. The cubic root of 204031105 is about 588.7064497487.

Adding to 204031105 its reverse (501130402), we get a palindrome (705161507).

The spelling of 204031105 in words is "two hundred four million, thirty-one thousand, one hundred five".