133645008 has 40 divisors (see below), whose sum is σ = 394571968. Its totient is φ = 38184192.

The previous prime is 133644991. The next prime is 133645049. The reversal of 133645008 is 800546331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198541 + ... + 199212.

Almost surely, 2^133645008 is an apocalyptic number.

It is an amenable number.

133645008 is an abundant number, since it is smaller than the sum of its proper divisors (260926960).

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

133645008 is a wasteful number, since it uses less digits than its factorization.

133645008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397771 (or 397765 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 133645008 is about 11560.4934150753. The cubic root of 133645008 is about 511.2707105588.

The spelling of 133645008 in words is "one hundred thirty-three million, six hundred forty-five thousand, eight".