133331284 has 12 divisors (see below), whose sum is σ = 245610400. Its totient is φ = 63156888.

The previous prime is 133331267. The next prime is 133331291. The reversal of 133331284 is 482133331.

133331284 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 877104 + ... + 877255.

Almost surely, 2^133331284 is an apocalyptic number.

It is an amenable number.

133331284 is a deficient number, since it is larger than the sum of its proper divisors (112279116).

133331284 is a wasteful number, since it uses less digits than its factorization.

133331284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1754382 (or 1754380 counting only the distinct ones).

The product of its digits is 5184, while the sum is 28.

The square root of 133331284 is about 11546.9166447152. The cubic root of 133331284 is about 510.8703375432.

The spelling of 133331284 in words is "one hundred thirty-three million, three hundred thirty-one thousand, two hundred eighty-four".