133576668 has 48 divisors (see below), whose sum is σ = 358260000. Its totient is φ = 42989184.

The previous prime is 133576661. The next prime is 133576673. The reversal of 133576668 is 866675331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133576661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18193 + ... + 24456.

It is an arithmetic number, because the mean of its divisors is an integer number (7463750).

Almost surely, 2^133576668 is an apocalyptic number.

133576668 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

133576668 is an abundant number, since it is smaller than the sum of its proper divisors (224683332).

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

133576668 is a wasteful number, since it uses less digits than its factorization.

133576668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42691 (or 42683 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 133576668 is about 11557.5372809262. The cubic root of 133576668 is about 511.1835488104.

The spelling of 133576668 in words is "one hundred thirty-three million, five hundred seventy-six thousand, six hundred sixty-eight".