133660868 has 24 divisors (see below), whose sum is σ = 270182304. Its totient is φ = 57180800.

The previous prime is 133660853. The next prime is 133660873. The reversal of 133660868 is 868066331.

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, 88598 + ... + 90093.

It is an arithmetic number, because the mean of its divisors is an integer number (11257596).

Almost surely, 2^133660868 is an apocalyptic number.

It is an amenable number.

133660868 is an abundant number, since it is smaller than the sum of its proper divisors (136521436).

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

133660868 is a wasteful number, since it uses less digits than its factorization.

133660868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178723 (or 178721 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 133660868 is about 11561.1793516060. The cubic root of 133660868 is about 511.2909343663.

The spelling of 133660868 in words is "one hundred thirty-three million, six hundred sixty thousand, eight hundred sixty-eight".