204124918 has 4 divisors (see below), whose sum is σ = 306187380. Its totient is φ = 102062458.

The previous prime is 204124897. The next prime is 204124919. The reversal of 204124918 is 819421402.

204124918 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 204124918.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204124919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51031228 + ... + 51031231.

It is an arithmetic number, because the mean of its divisors is an integer number (76546845).

Almost surely, 2^204124918 is an apocalyptic number.

204124918 is a deficient number, since it is larger than the sum of its proper divisors (102062462).

204124918 is a wasteful number, since it uses less digits than its factorization.

204124918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102062461.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 204124918 is about 14287.2291925341. The cubic root of 204124918 is about 588.7966645156.

The spelling of 204124918 in words is "two hundred four million, one hundred twenty-four thousand, nine hundred eighteen".