204441155 has 16 divisors (see below), whose sum is σ = 256180320. Its totient is φ = 156425472.

The previous prime is 204441151. The next prime is 204441191. The reversal of 204441155 is 551144402.

It is a cyclic number.

It is not a de Polignac number, because 204441155 - 2² = 204441151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204441151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8927 + ... + 22103.

It is an arithmetic number, because the mean of its divisors is an integer number (16011270).

Almost surely, 2^204441155 is an apocalyptic number.

204441155 is a deficient number, since it is larger than the sum of its proper divisors (51739165).

204441155 is a wasteful number, since it uses less digits than its factorization.

204441155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13318.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 204441155 is about 14298.2920308686. The cubic root of 204441155 is about 589.1005686477.

Adding to 204441155 its reverse (551144402), we get a palindrome (755585557).

The spelling of 204441155 in words is "two hundred four million, four hundred forty-one thousand, one hundred fifty-five".