206436113 has 8 divisors (see below), whose sum is σ = 226511208. Its totient is φ = 186960384.

The previous prime is 206436091. The next prime is 206436119. The reversal of 206436113 is 311634602.

It can be written as a sum of positive squares in 4 ways, for example, as 47499664 + 158936449 = 6892^2 + 12607^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 206436113 - 2²⁰ = 205387537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206436119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149120 + ... + 150497.

It is an arithmetic number, because the mean of its divisors is an integer number (28313901).

Almost surely, 2^206436113 is an apocalyptic number.

It is an amenable number.

206436113 is a deficient number, since it is larger than the sum of its proper divisors (20075095).

206436113 is a wasteful number, since it uses less digits than its factorization.

206436113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299683.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 206436113 is about 14367.8847782128. The cubic root of 206436113 is about 591.0105376503.

The spelling of 206436113 in words is "two hundred six million, four hundred thirty-six thousand, one hundred thirteen".