201135166 has 16 divisors (see below), whose sum is σ = 310109184. Its totient is φ = 97786584.

The previous prime is 201135149. The next prime is 201135167. The reversal of 201135166 is 661531102.

It is a self number, because there is not a number n which added to its sum of digits gives 201135166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201135167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14371 + ... + 24673.

It is an arithmetic number, because the mean of its divisors is an integer number (19381824).

Almost surely, 2^201135166 is an apocalyptic number.

201135166 is a deficient number, since it is larger than the sum of its proper divisors (108974018).

201135166 is a wasteful number, since it uses less digits than its factorization.

201135166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10575.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 201135166 is about 14182.2130149000. The cubic root of 201135166 is about 585.9078761168.

Adding to 201135166 its reverse (661531102), we get a palindrome (862666268).

The spelling of 201135166 in words is "two hundred one million, one hundred thirty-five thousand, one hundred sixty-six".