206113 has 4 divisors (see below), whose sum is σ = 209088. Its totient is φ = 203140.

The previous prime is 206083. The next prime is 206123. The reversal of 206113 is 311602.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 311602 = 2 ⋅155801.

It is a cyclic number.

It is not a de Polignac number, because 206113 - 2⁵ = 206081 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 206093 and 206102.

It is not an unprimeable number, because it can be changed into a prime (206123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1381 + ... + 1522.

It is an arithmetic number, because the mean of its divisors is an integer number (52272).

2²⁰⁶¹¹³ is an apocalyptic number.

It is an amenable number.

206113 is a deficient number, since it is larger than the sum of its proper divisors (2975).

206113 is an equidigital number, since it uses as much as digits as its factorization.

206113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2974.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 206113 is about 453.9966960232. The cubic root of 206113 is about 59.0702027504.

Adding to 206113 its reverse (311602), we get a palindrome (517715).

The spelling of 206113 in words is "two hundred six thousand, one hundred thirteen".