206682013 has 2 divisors, whose sum is σ = 206682014. Its totient is φ = 206682012.

The previous prime is 206682011. The next prime is 206682023. The reversal of 206682013 is 310286602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 134142724 + 72539289 = 11582^2 + 8517^2 .

It is a cyclic number.

It is not a de Polignac number, because 206682013 - 2¹ = 206682011 is a prime.

Together with 206682011, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206682011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103341006 + 103341007.

It is an arithmetic number, because the mean of its divisors is an integer number (103341007).

Almost surely, 2^206682013 is an apocalyptic number.

It is an amenable number.

206682013 is a deficient number, since it is larger than the sum of its proper divisors (1).

206682013 is an equidigital number, since it uses as much as digits as its factorization.

206682013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 206682013 is about 14376.4395105325. The cubic root of 206682013 is about 591.2451087295.

The spelling of 206682013 in words is "two hundred six million, six hundred eighty-two thousand, thirteen".