206551313 has 2 divisors, whose sum is σ = 206551314. Its totient is φ = 206551312.

The previous prime is 206551259. The next prime is 206551349. The reversal of 206551313 is 313155602.

206551313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 197599249 + 8952064 = 14057^2 + 2992^2 .

It is a cyclic number.

It is not a de Polignac number, because 206551313 - 2⁶ = 206551249 is a prime.

It is not a weakly prime, because it can be changed into another prime (206551013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103275656 + 103275657.

It is an arithmetic number, because the mean of its divisors is an integer number (103275657).

Almost surely, 2^206551313 is an apocalyptic number.

It is an amenable number.

206551313 is a deficient number, since it is larger than the sum of its proper divisors (1).

206551313 is an equidigital number, since it uses as much as digits as its factorization.

206551313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 206551313 is about 14371.8931599146. The cubic root of 206551313 is about 591.1204534207.

The spelling of 206551313 in words is "two hundred six million, five hundred fifty-one thousand, three hundred thirteen".