133500166 has 8 divisors (see below), whose sum is σ = 207155520. Its totient is φ = 64448328.

The previous prime is 133500161. The next prime is 133500173. The reversal of 133500166 is 661005331.

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

It is a self number, because there is not a number n which added to its sum of digits gives 133500166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133500161) 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, 1150806 + ... + 1150921.

It is an arithmetic number, because the mean of its divisors is an integer number (25894440).

Almost surely, 2^133500166 is an apocalyptic number.

133500166 is a deficient number, since it is larger than the sum of its proper divisors (73655354).

133500166 is a wasteful number, since it uses less digits than its factorization.

133500166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2301758.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 133500166 is about 11554.2271918117. The cubic root of 133500166 is about 511.0859418643.

Adding to 133500166 its reverse (661005331), we get a palindrome (794505497).

The spelling of 133500166 in words is "one hundred thirty-three million, five hundred thousand, one hundred sixty-six".