133612032 has 80 divisors (see below), whose sum is σ = 365726592. Its totient is φ = 43315200.

The previous prime is 133611937. The next prime is 133612057. The reversal of 133612032 is 230216331.

It is a nialpdrome in base 8.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55657 + ... + 58007.

Almost surely, 2^133612032 is an apocalyptic number.

133612032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133612032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182863296).

133612032 is an abundant number, since it is smaller than the sum of its proper divisors (232114560).

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

133612032 is an equidigital number, since it uses as much as digits as its factorization.

133612032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2409 (or 2393 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 133612032 is about 11559.0670903841. The cubic root of 133612032 is about 511.2286562388.

Adding to 133612032 its reverse (230216331), we get a palindrome (363828363).

The spelling of 133612032 in words is "one hundred thirty-three million, six hundred twelve thousand, thirty-two".