206413 has 2 divisors, whose sum is σ = 206414. Its totient is φ = 206412.

The previous prime is 206411. The next prime is 206419. The reversal of 206413 is 314602.

206413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 149769 + 56644 = 387^2 + 238^2 .

It is a cyclic number.

It is not a de Polignac number, because 206413 - 2¹ = 206411 is a prime.

Together with 206411, it forms a pair of twin primes.

206413 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103206 + 103207.

It is an arithmetic number, because the mean of its divisors is an integer number (103207).

2²⁰⁶⁴¹³ is an apocalyptic number.

It is an amenable number.

206413 is a deficient number, since it is larger than the sum of its proper divisors (1).

206413 is an equidigital number, since it uses as much as digits as its factorization.

206413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 206413 is about 454.3269747660. The cubic root of 206413 is about 59.0988479920.

It can be divided in two parts, 206 and 413, that multiplied together give a triangular number (85078 = T₄₁₂).

The spelling of 206413 in words is "two hundred six thousand, four hundred thirteen".