133408248 has 64 divisors (see below), whose sum is σ = 357696000. Its totient is φ = 41313792.

The previous prime is 133408237. The next prime is 133408267. The reversal of 133408248 is 842804331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30163 + ... + 34301.

It is an arithmetic number, because the mean of its divisors is an integer number (5589000).

Almost surely, 2^133408248 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 133408248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178848000).

133408248 is an abundant number, since it is smaller than the sum of its proper divisors (224287752).

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

133408248 is a wasteful number, since it uses less digits than its factorization.

133408248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4244 (or 4240 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 133408248 is about 11550.2488284885. The cubic root of 133408248 is about 510.9686167079.

The spelling of 133408248 in words is "one hundred thirty-three million, four hundred eight thousand, two hundred forty-eight".