133263166 has 16 divisors (see below), whose sum is σ = 203516928. Its totient is φ = 65431800.

The previous prime is 133263157. The next prime is 133263181. The reversal of 133263166 is 661362331.

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 7 ways as a sum of consecutive naturals, for example, 36751 + ... + 40213.

It is an arithmetic number, because the mean of its divisors is an integer number (12719808).

Almost surely, 2^133263166 is an apocalyptic number.

133263166 is a deficient number, since it is larger than the sum of its proper divisors (70253762).

133263166 is a wasteful number, since it uses less digits than its factorization.

133263166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3807.

The product of its digits is 11664, while the sum is 31.

The square root of 133263166 is about 11543.9666492935. The cubic root of 133263166 is about 510.7833227218.

The spelling of 133263166 in words is "one hundred thirty-three million, two hundred sixty-three thousand, one hundred sixty-six".