201133806 has 8 divisors (see below), whose sum is σ = 402267624. Its totient is φ = 67044600.

The previous prime is 201133787. The next prime is 201133819. The reversal of 201133806 is 608331102.

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

201133806 is an admirable number.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16761145 + ... + 16761156.

It is an arithmetic number, because the mean of its divisors is an integer number (50283453).

Almost surely, 2^201133806 is an apocalyptic number.

201133806 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201133806 is a wasteful number, since it uses less digits than its factorization.

201133806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33522306.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 201133806 is about 14182.1650674359. The cubic root of 201133806 is about 585.9065555512.

Adding to 201133806 its reverse (608331102), we get a palindrome (809464908).

The spelling of 201133806 in words is "two hundred one million, one hundred thirty-three thousand, eight hundred six".