133454432 has 48 divisors (see below), whose sum is σ = 271615680. Its totient is φ = 64508928.

The previous prime is 133454417. The next prime is 133454483. The reversal of 133454432 is 234454331.

It is a junction number, because it is equal to n+sod(n) for n = 133454395 and 133454404.

It is a congruent number.

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, 133358 + ... + 134354.

It is an arithmetic number, because the mean of its divisors is an integer number (5658660).

Almost surely, 2^133454432 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 133454432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135807840).

133454432 is an abundant number, since it is smaller than the sum of its proper divisors (138161248).

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

133454432 is an equidigital number, since it uses as much as digits as its factorization.

133454432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1143 (or 1135 counting only the distinct ones).

The product of its digits is 17280, while the sum is 29.

The square root of 133454432 is about 11552.2479197773. The cubic root of 133454432 is about 511.0275732125.

The spelling of 133454432 in words is "one hundred thirty-three million, four hundred fifty-four thousand, four hundred thirty-two".