206631041 has 2 divisors, whose sum is σ = 206631042. Its totient is φ = 206631040.

The previous prime is 206630993. The next prime is 206631059. The reversal of 206631041 is 140136602.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 156150016 + 50481025 = 12496^2 + 7105^2 .

It is a cyclic number.

It is not a de Polignac number, because 206631041 - 2²² = 202436737 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 206630998 and 206631016.

It is not a weakly prime, because it can be changed into another prime (206631071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103315520 + 103315521.

It is an arithmetic number, because the mean of its divisors is an integer number (103315521).

Almost surely, 2^206631041 is an apocalyptic number.

It is an amenable number.

206631041 is a deficient number, since it is larger than the sum of its proper divisors (1).

206631041 is an equidigital number, since it uses as much as digits as its factorization.

206631041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 206631041 is about 14374.6666396129. Note that the first 4 decimals coincide. The cubic root of 206631041 is about 591.1965003656.

Adding to 206631041 its reverse (140136602), we get a palindrome (346767643).

The spelling of 206631041 in words is "two hundred six million, six hundred thirty-one thousand, forty-one".