206523201 has 8 divisors (see below), whose sum is σ = 275504800. Its totient is φ = 137611872.

The previous prime is 206523151. The next prime is 206523221. The reversal of 206523201 is 102325602.

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

It is not a de Polignac number, because 206523201 - 2⁹ = 206522689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206523221) 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, 10276 + ... + 22773.

It is an arithmetic number, because the mean of its divisors is an integer number (34438100).

Almost surely, 2^206523201 is an apocalyptic number.

It is an amenable number.

206523201 is a deficient number, since it is larger than the sum of its proper divisors (68981599).

206523201 is a wasteful number, since it uses less digits than its factorization.

206523201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35135.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 206523201 is about 14370.9151065616. The cubic root of 206523201 is about 591.0936346900.

Adding to 206523201 its reverse (102325602), we get a palindrome (308848803).

The spelling of 206523201 in words is "two hundred six million, five hundred twenty-three thousand, two hundred one".