133506766 has 8 divisors (see below), whose sum is σ = 208967184. Its totient is φ = 63851040.

The previous prime is 133506731. The next prime is 133506781. The reversal of 133506766 is 667605331.

133506766 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1451115 + ... + 1451206.

It is an arithmetic number, because the mean of its divisors is an integer number (26120898).

Almost surely, 2^133506766 is an apocalyptic number.

133506766 is a deficient number, since it is larger than the sum of its proper divisors (75460418).

133506766 is a wasteful number, since it uses less digits than its factorization.

133506766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2902346.

The product of its (nonzero) digits is 68040, while the sum is 37.

The square root of 133506766 is about 11554.5127980370. The cubic root of 133506766 is about 511.0943641051.

The spelling of 133506766 in words is "one hundred thirty-three million, five hundred six thousand, seven hundred sixty-six".