133191432924 has 144 divisors (see below), whose sum is σ = 365213931264. Its totient is φ = 37617338880.

The previous prime is 133191432889. The next prime is 133191432931. The reversal of 133191432924 is 429234191331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2516259 + ... + 2568645.

It is an arithmetic number, because the mean of its divisors is an integer number (2536207856).

Almost surely, 2^133191432924 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 133191432924, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182606965632).

133191432924 is an abundant number, since it is smaller than the sum of its proper divisors (232022498340).

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

133191432924 is a wasteful number, since it uses less digits than its factorization.

133191432924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52536 (or 52523 counting only the distinct ones).

The product of its digits is 139968, while the sum is 42.

The spelling of 133191432924 in words is "one hundred thirty-three billion, one hundred ninety-one million, four hundred thirty-two thousand, nine hundred twenty-four".