206069 has 2 divisors, whose sum is σ = 206070. Its totient is φ = 206068.

The previous prime is 206051. The next prime is 206077. The reversal of 206069 is 960602.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 136900 + 69169 = 370^2 + 263^2 .

It is a cyclic number.

It is not a de Polignac number, because 206069 - 2¹² = 201973 is a prime.

It is a super-2 number, since 2×206069² = 84928865522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103034 + 103035.

It is an arithmetic number, because the mean of its divisors is an integer number (103035).

2²⁰⁶⁰⁶⁹ is an apocalyptic number.

It is an amenable number.

206069 is a deficient number, since it is larger than the sum of its proper divisors (1).

206069 is an equidigital number, since it uses as much as digits as its factorization.

206069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 206069 is about 453.9482349343. The cubic root of 206069 is about 59.0659991115.

The spelling of 206069 in words is "two hundred six thousand, sixty-nine".