206271629 has 2 divisors, whose sum is σ = 206271630. Its totient is φ = 206271628.

The previous prime is 206271589. The next prime is 206271649. The reversal of 206271629 is 926172602.

206271629 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., 158634025 + 47637604 = 12595^2 + 6902^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-206271629 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206271649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103135814 + 103135815.

It is an arithmetic number, because the mean of its divisors is an integer number (103135815).

Almost surely, 2^206271629 is an apocalyptic number.

It is an amenable number.

206271629 is a deficient number, since it is larger than the sum of its proper divisors (1).

206271629 is an equidigital number, since it uses as much as digits as its factorization.

206271629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 206271629 is about 14362.1596217282. The cubic root of 206271629 is about 590.8535276420.

The spelling of 206271629 in words is "two hundred six million, two hundred seventy-one thousand, six hundred twenty-nine".