205982231 has 24 divisors (see below), whose sum is σ = 259547904. Its totient is φ = 162025920.

The previous prime is 205982167. The next prime is 205982233. The reversal of 205982231 is 132289502.

It is a happy number.

It is not a de Polignac number, because 205982231 - 2⁶ = 205982167 is a prime.

It is a super-2 number, since 2×205982231² = 84857358975474722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205982233) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 120821 + ... + 122513.

It is an arithmetic number, because the mean of its divisors is an integer number (10814496).

Almost surely, 2^205982231 is an apocalyptic number.

205982231 is a deficient number, since it is larger than the sum of its proper divisors (53565673).

205982231 is a wasteful number, since it uses less digits than its factorization.

205982231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1911 (or 1904 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 205982231 is about 14352.0810686116. The cubic root of 205982231 is about 590.5770768615.

The spelling of 205982231 in words is "two hundred five million, nine hundred eighty-two thousand, two hundred thirty-one".