133166386 has 8 divisors (see below), whose sum is σ = 202731120. Its totient is φ = 65589348.

The previous prime is 133166357. The next prime is 133166413. The reversal of 133166386 is 683661331.

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

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, 496756 + ... + 497023.

It is an arithmetic number, because the mean of its divisors is an integer number (25341390).

Almost surely, 2^133166386 is an apocalyptic number.

133166386 is a deficient number, since it is larger than the sum of its proper divisors (69564734).

133166386 is an equidigital number, since it uses as much as digits as its factorization.

133166386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993848.

The product of its digits is 46656, while the sum is 37.

The square root of 133166386 is about 11539.7740879100. The cubic root of 133166386 is about 510.6596436811.

The spelling of 133166386 in words is "one hundred thirty-three million, one hundred sixty-six thousand, three hundred eighty-six".