133882668 has 18 divisors (see below), whose sum is σ = 338425724. Its totient is φ = 44627544.

The previous prime is 133882591. The next prime is 133882669. The reversal of 133882668 is 866288331.

133882668 is a `hidden beast` number, since 1 + 3 + 388 + 266 + 8 = 666.

133882668 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (133882669) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 1859446 + ... + 1859517.

Almost surely, 2^133882668 is an apocalyptic number.

133882668 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

133882668 is an abundant number, since it is smaller than the sum of its proper divisors (204543056).

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

133882668 is a wasteful number, since it uses less digits than its factorization.

133882668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3718973 (or 3718968 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The square root of 133882668 is about 11570.7678224049. The cubic root of 133882668 is about 511.5735941557.

The spelling of 133882668 in words is "one hundred thirty-three million, eight hundred eighty-two thousand, six hundred sixty-eight".