133866012 has 24 divisors (see below), whose sum is σ = 356976256. Its totient is φ = 38247408.

The previous prime is 133865989. The next prime is 133866079. The reversal of 133866012 is 210668331.

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, 796738 + ... + 796905.

Almost surely, 2^133866012 is an apocalyptic number.

133866012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

133866012 is an abundant number, since it is smaller than the sum of its proper divisors (223110244).

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

133866012 is a wasteful number, since it uses less digits than its factorization.

133866012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1593657 (or 1593655 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 133866012 is about 11570.0480552157. The cubic root of 133866012 is about 511.5523787554.

The spelling of 133866012 in words is "one hundred thirty-three million, eight hundred sixty-six thousand, twelve".