133727784 has 64 divisors (see below), whose sum is σ = 345047040. Its totient is φ = 43166400.

The previous prime is 133727761. The next prime is 133727821. The reversal of 133727784 is 487727331.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115609 + ... + 116759.

It is an arithmetic number, because the mean of its divisors is an integer number (5391360).

Almost surely, 2^133727784 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133727784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172523520).

133727784 is an abundant number, since it is smaller than the sum of its proper divisors (211319256).

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

133727784 is a wasteful number, since it uses less digits than its factorization.

133727784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1310 (or 1306 counting only the distinct ones).

The product of its digits is 197568, while the sum is 42.

The square root of 133727784 is about 11564.0729848959. The cubic root of 133727784 is about 511.3762443918.

The spelling of 133727784 in words is "one hundred thirty-three million, seven hundred twenty-seven thousand, seven hundred eighty-four".