204900851 has 4 divisors (see below), whose sum is σ = 205751304. Its totient is φ = 204050400.

The previous prime is 204900841. The next prime is 204900889. The reversal of 204900851 is 158009402.

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

It is a cyclic number.

It is not a de Polignac number, because 204900851 - 2²² = 200706547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204900811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 424865 + ... + 425346.

It is an arithmetic number, because the mean of its divisors is an integer number (51437826).

Almost surely, 2^204900851 is an apocalyptic number.

204900851 is a deficient number, since it is larger than the sum of its proper divisors (850453).

204900851 is an equidigital number, since it uses as much as digits as its factorization.

204900851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850452.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 204900851 is about 14314.3582112507. The cubic root of 204900851 is about 589.5417786603.

The spelling of 204900851 in words is "two hundred four million, nine hundred thousand, eight hundred fifty-one".