204104121 has 8 divisors (see below), whose sum is σ = 293072640. Its totient is φ = 125602512.

The previous prime is 204104119. The next prime is 204104141. The reversal of 204104121 is 121401402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 204104121 - 2¹ = 204104119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 204104121.

It is not an unprimeable number, because it can be changed into a prime (204104111) 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 7 ways as a sum of consecutive naturals, for example, 2616681 + ... + 2616758.

It is an arithmetic number, because the mean of its divisors is an integer number (36634080).

Almost surely, 2^204104121 is an apocalyptic number.

It is an amenable number.

204104121 is a deficient number, since it is larger than the sum of its proper divisors (88968519).

204104121 is a wasteful number, since it uses less digits than its factorization.

204104121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5233455.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 204104121 is about 14286.5013561753. The cubic root of 204104121 is about 588.7766675774.

Adding to 204104121 its reverse (121401402), we get a palindrome (325505523).

It can be divided in two parts, 20410 and 4121, that added together give a triangular number (24531 = T₂₂₁).

The spelling of 204104121 in words is "two hundred four million, one hundred four thousand, one hundred twenty-one".