206147004347 has 2 divisors, whose sum is σ = 206147004348. Its totient is φ = 206147004346.

The previous prime is 206147004337. The next prime is 206147004361. The reversal of 206147004347 is 743400741602.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 206147004347 - 2⁴ = 206147004331 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 206147004347.

It is not a weakly prime, because it can be changed into another prime (206147004337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103073502173 + 103073502174.

It is an arithmetic number, because the mean of its divisors is an integer number (103073502174).

Almost surely, 2^206147004347 is an apocalyptic number.

206147004347 is a deficient number, since it is larger than the sum of its proper divisors (1).

206147004347 is an equidigital number, since it uses as much as digits as its factorization.

206147004347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112896, while the sum is 38.

Adding to 206147004347 its reverse (743400741602), we get a palindrome (949547745949).

The spelling of 206147004347 in words is "two hundred six billion, one hundred forty-seven million, four thousand, three hundred forty-seven".