206013 has 8 divisors (see below), whose sum is σ = 281248. Its totient is φ = 134064.

The previous prime is 206009. The next prime is 206021. The reversal of 206013 is 310602.

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

It is not a de Polignac number, because 206013 - 2² = 206009 is a prime.

It is an Ulam 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 206013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206033) 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, 670 + ... + 927.

It is an arithmetic number, because the mean of its divisors is an integer number (35156).

2²⁰⁶⁰¹³ is an apocalyptic number.

It is an amenable number.

206013 is a deficient number, since it is larger than the sum of its proper divisors (75235).

206013 is a wasteful number, since it uses less digits than its factorization.

206013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1643.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 206013 is about 453.8865497016. The cubic root of 206013 is about 59.0606481601.

Adding to 206013 its reverse (310602), we get a palindrome (516615).

The spelling of 206013 in words is "two hundred six thousand, thirteen".