204375231 has 10 divisors (see below), whose sum is σ = 305301392. Its totient is φ = 136250100.

The previous prime is 204375187. The next prime is 204375257. The reversal of 204375231 is 132573402.

It is not a de Polignac number, because 204375231 - 2⁷ = 204375103 is a prime.

It is a super-2 number, since 2×204375231² = 83538470092606722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 204375195 and 204375204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204375271) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1261495 + ... + 1261656.

Almost surely, 2^204375231 is an apocalyptic number.

204375231 is a deficient number, since it is larger than the sum of its proper divisors (100926161).

204375231 is an equidigital number, since it uses as much as digits as its factorization.

204375231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2523163 (or 2523154 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 204375231 is about 14295.9865346887. The cubic root of 204375231 is about 589.0372414750.

The spelling of 204375231 in words is "two hundred four million, three hundred seventy-five thousand, two hundred thirty-one".