133552166 has 32 divisors (see below), whose sum is σ = 225884160. Its totient is φ = 58687200.

The previous prime is 133552091. The next prime is 133552183. The reversal of 133552166 is 661255331.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155045 + ... + 155903.

It is an arithmetic number, because the mean of its divisors is an integer number (7058880).

Almost surely, 2^133552166 is an apocalyptic number.

133552166 is a deficient number, since it is larger than the sum of its proper divisors (92331994).

133552166 is a wasteful number, since it uses less digits than its factorization.

133552166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100.

The product of its digits is 16200, while the sum is 32.

The square root of 133552166 is about 11556.4772314058. The cubic root of 133552166 is about 511.1522913925.

The spelling of 133552166 in words is "one hundred thirty-three million, five hundred fifty-two thousand, one hundred sixty-six".