133591104 has 84 divisors (see below), whose sum is σ = 389503920. Its totient is φ = 43764480.

The previous prime is 133591097. The next prime is 133591141. The reversal of 133591104 is 401195331.

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 11 ways as a sum of consecutive naturals, for example, 32019 + ... + 35949.

Almost surely, 2^133591104 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 133591104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194751960).

133591104 is an abundant number, since it is smaller than the sum of its proper divisors (255912816).

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

133591104 is a wasteful number, since it uses less digits than its factorization.

133591104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4008 (or 3995 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 133591104 is about 11558.1617915653. The cubic root of 133591104 is about 511.2019631538.

The spelling of 133591104 in words is "one hundred thirty-three million, five hundred ninety-one thousand, one hundred four".