205681203 has 96 divisors (see below), whose sum is σ = 389975040. Its totient is φ = 101502720.

The previous prime is 205681193. The next prime is 205681207. The reversal of 205681203 is 302186502.

It is not a de Polignac number, because 205681203 - 2⁵ = 205681171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (205681207) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1148968 + ... + 1149146.

It is an arithmetic number, because the mean of its divisors is an integer number (4062240).

Almost surely, 2^205681203 is an apocalyptic number.

205681203 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

205681203 is a deficient number, since it is larger than the sum of its proper divisors (184293837).

205681203 is a wasteful number, since it uses less digits than its factorization.

205681203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289 (or 286 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 205681203 is about 14341.5899746158. The cubic root of 205681203 is about 590.2892414981.

The spelling of 205681203 in words is "two hundred five million, six hundred eighty-one thousand, two hundred three".