133205206 has 8 divisors (see below), whose sum is σ = 202215384. Its totient is φ = 65800080.

The previous prime is 133205201. The next prime is 133205209. The reversal of 133205206 is 602502331.

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

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133205201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 401055 + ... + 401386.

It is an arithmetic number, because the mean of its divisors is an integer number (25276923).

Almost surely, 2^133205206 is an apocalyptic number.

133205206 is a deficient number, since it is larger than the sum of its proper divisors (69010178).

133205206 is an equidigital number, since it uses as much as digits as its factorization.

133205206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802526.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 133205206 is about 11541.4559740095. The cubic root of 133205206 is about 510.7092605100.

Adding to 133205206 its reverse (602502331), we get a palindrome (735707537).

The spelling of 133205206 in words is "one hundred thirty-three million, two hundred five thousand, two hundred six".