205813107 has 12 divisors (see below), whose sum is σ = 298257960. Its totient is φ = 136759968.

The previous prime is 205813099. The next prime is 205813117. The reversal of 205813107 is 701318502.

205813107 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 205813107 - 2³ = 205813099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (205813117) 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, 34482 + ... + 40007.

It is an arithmetic number, because the mean of its divisors is an integer number (24854830).

Almost surely, 2^205813107 is an apocalyptic number.

205813107 is a deficient number, since it is larger than the sum of its proper divisors (92444853).

205813107 is a wasteful number, since it uses less digits than its factorization.

205813107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74802 (or 74799 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 205813107 is about 14346.1878908649. The cubic root of 205813107 is about 590.4153993136.

The spelling of 205813107 in words is "two hundred five million, eight hundred thirteen thousand, one hundred seven".