206732243 has 2 divisors, whose sum is σ = 206732244. Its totient is φ = 206732242.

The previous prime is 206732237. The next prime is 206732321. The reversal of 206732243 is 342237602.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 206732243 - 2²² = 202537939 is a prime.

It is a super-2 number, since 2×206732243² = 85476440591622098, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (206732443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103366121 + 103366122.

It is an arithmetic number, because the mean of its divisors is an integer number (103366122).

Almost surely, 2^206732243 is an apocalyptic number.

206732243 is a deficient number, since it is larger than the sum of its proper divisors (1).

206732243 is an equidigital number, since it uses as much as digits as its factorization.

206732243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 29.

The square root of 206732243 is about 14378.1863598995. The cubic root of 206732243 is about 591.2930016833.

Adding to 206732243 its reverse (342237602), we get a palindrome (548969845).

The spelling of 206732243 in words is "two hundred six million, seven hundred thirty-two thousand, two hundred forty-three".