133733286 has 48 divisors (see below), whose sum is σ = 307507200. Its totient is φ = 41885424.

The previous prime is 133733279. The next prime is 133733309. The reversal of 133733286 is 682337331.

It is a happy number.

133733286 is a `hidden beast` number, since 1 + 3 + 373 + 3 + 286 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 133733286.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 41895 + ... + 44973.

It is an arithmetic number, because the mean of its divisors is an integer number (6406400).

Almost surely, 2^133733286 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133733286, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153753600).

133733286 is an abundant number, since it is smaller than the sum of its proper divisors (173773914).

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

133733286 is a wasteful number, since it uses less digits than its factorization.

133733286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3233 (or 3230 counting only the distinct ones).

The product of its digits is 54432, while the sum is 36.

The square root of 133733286 is about 11564.3108744101. The cubic root of 133733286 is about 511.3832575281.

The spelling of 133733286 in words is "one hundred thirty-three million, seven hundred thirty-three thousand, two hundred eighty-six".