206974241 has 2 divisors, whose sum is σ = 206974242. Its totient is φ = 206974240.

The previous prime is 206974237. The next prime is 206974283. The reversal of 206974241 is 142479602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 193321216 + 13653025 = 13904^2 + 3695^2 .

It is a cyclic number.

It is not a de Polignac number, because 206974241 - 2² = 206974237 is a prime.

It is a Chen prime.

It is equal to p_11443589 and since 206974241 and 11443589 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (206974231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103487120 + 103487121.

It is an arithmetic number, because the mean of its divisors is an integer number (103487121).

Almost surely, 2^206974241 is an apocalyptic number.

It is an amenable number.

206974241 is a deficient number, since it is larger than the sum of its proper divisors (1).

206974241 is an equidigital number, since it uses as much as digits as its factorization.

206974241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 206974241 is about 14386.5993549553. The cubic root of 206974241 is about 591.5236316103.

The spelling of 206974241 in words is "two hundred six million, nine hundred seventy-four thousand, two hundred forty-one".