206650245 has 8 divisors (see below), whose sum is σ = 330640416. Its totient is φ = 110213456.

The previous prime is 206650243. The next prime is 206650253. The reversal of 206650245 is 542056602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 206650245 - 2¹ = 206650243 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206650243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6888327 + ... + 6888356.

It is an arithmetic number, because the mean of its divisors is an integer number (41330052).

Almost surely, 2^206650245 is an apocalyptic number.

It is an amenable number.

206650245 is a deficient number, since it is larger than the sum of its proper divisors (123990171).

206650245 is a wasteful number, since it uses less digits than its factorization.

206650245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13776691.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 206650245 is about 14375.3346048014. The cubic root of 206650245 is about 591.2148147903.

The spelling of 206650245 in words is "two hundred six million, six hundred fifty thousand, two hundred forty-five".