205970629 has 2 divisors, whose sum is σ = 205970630. Its totient is φ = 205970628.

The previous prime is 205970581. The next prime is 205970641. The reversal of 205970629 is 926079502.

It is a happy number.

205970629 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., 112848129 + 93122500 = 10623^2 + 9650^2 .

It is a cyclic number.

It is not a de Polignac number, because 205970629 - 2⁹ = 205970117 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 205970591 and 205970600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (205970029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102985314 + 102985315.

It is an arithmetic number, because the mean of its divisors is an integer number (102985315).

Almost surely, 2^205970629 is an apocalyptic number.

It is an amenable number.

205970629 is a deficient number, since it is larger than the sum of its proper divisors (1).

205970629 is an equidigital number, since it uses as much as digits as its factorization.

205970629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 205970629 is about 14351.6768706657. The cubic root of 205970629 is about 590.5659885201.

The spelling of 205970629 in words is "two hundred five million, nine hundred seventy thousand, six hundred twenty-nine".