206113099 has 4 divisors (see below), whose sum is σ = 206256600. Its totient is φ = 205969600.

The previous prime is 206113093. The next prime is 206113123. The reversal of 206113099 is 990311602.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 206113099 - 2⁵ = 206113067 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 206113099.

It is not an unprimeable number, because it can be changed into a prime (206113093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69574 + ... + 72475.

It is an arithmetic number, because the mean of its divisors is an integer number (51564150).

Almost surely, 2^206113099 is an apocalyptic number.

206113099 is a deficient number, since it is larger than the sum of its proper divisors (143501).

206113099 is a wasteful number, since it uses less digits than its factorization.

206113099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143500.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 206113099 is about 14356.6395441273. The cubic root of 206113099 is about 590.7021220793.

The spelling of 206113099 in words is "two hundred six million, one hundred thirteen thousand, ninety-nine".