133788116 has 24 divisors (see below), whose sum is σ = 291902016. Its totient is φ = 52125120.

The previous prime is 133788091. The next prime is 133788163. The reversal of 133788116 is 611887331.

It is a self number, because there is not a number n which added to its sum of digits gives 133788116.

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 7 ways as a sum of consecutive naturals, for example, 216881 + ... + 217496.

It is an arithmetic number, because the mean of its divisors is an integer number (12162584).

Almost surely, 2^133788116 is an apocalyptic number.

It is an amenable number.

133788116 is an abundant number, since it is smaller than the sum of its proper divisors (158113900).

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

133788116 is a wasteful number, since it uses less digits than its factorization.

133788116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434399 (or 434397 counting only the distinct ones).

The product of its digits is 24192, while the sum is 38.

The square root of 133788116 is about 11566.6812872146. The cubic root of 133788116 is about 511.4531361991.

The spelling of 133788116 in words is "one hundred thirty-three million, seven hundred eighty-eight thousand, one hundred sixteen".