206238313 has 2 divisors, whose sum is σ = 206238314. Its totient is φ = 206238312.

The previous prime is 206238311. The next prime is 206238337. The reversal of 206238313 is 313832602.

206238313 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., 205291584 + 946729 = 14328^2 + 973^2 .

It is a cyclic number.

It is not a de Polignac number, because 206238313 - 2¹ = 206238311 is a prime.

Together with 206238311, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (206238311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103119156 + 103119157.

It is an arithmetic number, because the mean of its divisors is an integer number (103119157).

Almost surely, 2^206238313 is an apocalyptic number.

It is an amenable number.

206238313 is a deficient number, since it is larger than the sum of its proper divisors (1).

206238313 is an equidigital number, since it uses as much as digits as its factorization.

206238313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 206238313 is about 14360.9997214679. Note that the first 3 decimals coincide. The cubic root of 206238313 is about 590.8217153239.

The spelling of 206238313 in words is "two hundred six million, two hundred thirty-eight thousand, three hundred thirteen".