133112304 has 120 divisors (see below), whose sum is σ = 404283152. Its totient is φ = 40642560.

The previous prime is 133112269. The next prime is 133112311. The reversal of 133112304 is 403211331.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 394824 + ... + 395160.

Almost surely, 2^133112304 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 133112304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202141576).

133112304 is an abundant number, since it is smaller than the sum of its proper divisors (271170848).

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

133112304 is a wasteful number, since it uses less digits than its factorization.

133112304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575 (or 566 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 133112304 is about 11537.4305631713. The cubic root of 133112304 is about 510.5905040250.

Adding to 133112304 its reverse (403211331), we get a palindrome (536323635).

The spelling of 133112304 in words is "one hundred thirty-three million, one hundred twelve thousand, three hundred four".