133386672 has 30 divisors (see below), whose sum is σ = 344789068. Its totient is φ = 44435552.

The previous prime is 133386667. The next prime is 133386691. The reversal of 133386672 is 276683331.

It is a self number, because there is not a number n which added to its sum of digits gives 133386672.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 79183 + ... + 80849.

Almost surely, 2^133386672 is an apocalyptic number.

133386672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

133386672 is an abundant number, since it is smaller than the sum of its proper divisors (211402396).

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

133386672 is an frugal number, since it uses more digits than its factorization.

133386672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3345 (or 1672 counting only the distinct ones).

The product of its digits is 108864, while the sum is 39.

The square root of 133386672 is about 11549.3147848693. The cubic root of 133386672 is about 510.9410690527.

The spelling of 133386672 in words is "one hundred thirty-three million, three hundred eighty-six thousand, six hundred seventy-two".