206233073 has 2 divisors, whose sum is σ = 206233074. Its totient is φ = 206233072.

The previous prime is 206233067. The next prime is 206233121. The reversal of 206233073 is 370332602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110838784 + 95394289 = 10528^2 + 9767^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-206233073 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (206233003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103116536 + 103116537.

It is an arithmetic number, because the mean of its divisors is an integer number (103116537).

Almost surely, 2^206233073 is an apocalyptic number.

It is an amenable number.

206233073 is a deficient number, since it is larger than the sum of its proper divisors (1).

206233073 is an equidigital number, since it uses as much as digits as its factorization.

206233073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 26.

The square root of 206233073 is about 14360.8172817566. The cubic root of 206233073 is about 590.8167115139.

Adding to 206233073 its reverse (370332602), we get a palindrome (576565675).

The spelling of 206233073 in words is "two hundred six million, two hundred thirty-three thousand, seventy-three".