204056831 has 12 divisors (see below), whose sum is σ = 236475960. Its totient is φ = 174591360.

The previous prime is 204056821. The next prime is 204056833. The reversal of 204056831 is 138650402.

It is not a de Polignac number, because 204056831 - 2²² = 199862527 is a prime.

It is a super-2 number, since 2×204056831² = 83278380555525122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 204056794 and 204056803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204056833) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28916 + ... + 35273.

It is an arithmetic number, because the mean of its divisors is an integer number (19706330).

Almost surely, 2^204056831 is an apocalyptic number.

204056831 is a deficient number, since it is larger than the sum of its proper divisors (32419129).

204056831 is a wasteful number, since it uses less digits than its factorization.

204056831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64234 (or 64217 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 204056831 is about 14284.8462014822. The cubic root of 204056831 is about 588.7311917697.

The spelling of 204056831 in words is "two hundred four million, fifty-six thousand, eight hundred thirty-one".