133506642 has 8 divisors (see below), whose sum is σ = 267013296. Its totient is φ = 44502212.

The previous prime is 133506631. The next prime is 133506689. The reversal of 133506642 is 246605331.

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

133506642 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11125548 + ... + 11125559.

It is an arithmetic number, because the mean of its divisors is an integer number (33376662).

Almost surely, 2^133506642 is an apocalyptic number.

133506642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133506642 is a wasteful number, since it uses less digits than its factorization.

133506642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22251112.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 133506642 is about 11554.5074321669. The cubic root of 133506642 is about 511.0942058716.

The spelling of 133506642 in words is "one hundred thirty-three million, five hundred six thousand, six hundred forty-two".