133672166 has 8 divisors (see below), whose sum is σ = 200789280. Its totient is φ = 66742408.

The previous prime is 133672153. The next prime is 133672171. The reversal of 133672166 is 661276331.

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

It is a Curzon 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, 45041 + ... + 47916.

It is an arithmetic number, because the mean of its divisors is an integer number (25098660).

Almost surely, 2^133672166 is an apocalyptic number.

133672166 is a deficient number, since it is larger than the sum of its proper divisors (67117114).

133672166 is an equidigital number, since it uses as much as digits as its factorization.

133672166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93678.

The product of its digits is 27216, while the sum is 35.

The square root of 133672166 is about 11561.6679592522. The cubic root of 133672166 is about 511.3053399843.

The spelling of 133672166 in words is "one hundred thirty-three million, six hundred seventy-two thousand, one hundred sixty-six".