133383912 has 16 divisors (see below), whose sum is σ = 333459840. Its totient is φ = 44461296.

The previous prime is 133383907. The next prime is 133383949. The reversal of 133383912 is 219383331.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2778808 + ... + 2778855.

It is an arithmetic number, because the mean of its divisors is an integer number (20841240).

Almost surely, 2^133383912 is an apocalyptic number.

133383912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

133383912 is an abundant number, since it is smaller than the sum of its proper divisors (200075928).

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

133383912 is a wasteful number, since it uses less digits than its factorization.

133383912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5557672 (or 5557668 counting only the distinct ones).

The product of its digits is 11664, while the sum is 33.

The square root of 133383912 is about 11549.1952966430. The cubic root of 133383912 is about 510.9375449448.

The spelling of 133383912 in words is "one hundred thirty-three million, three hundred eighty-three thousand, nine hundred twelve".