133748608 has 64 divisors (see below), whose sum is σ = 307444320. Its totient is φ = 56770560.

The previous prime is 133748591. The next prime is 133748623. The reversal of 133748608 is 806847331.

It is a tau number, because it is divible by the number of its divisors (64).

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, 100588 + ... + 101908.

Almost surely, 2^133748608 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 133748608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153722160).

133748608 is an abundant number, since it is smaller than the sum of its proper divisors (173695712).

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

133748608 is a wasteful number, since it uses less digits than its factorization.

133748608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1455 (or 1443 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 133748608 is about 11564.9733246558. The cubic root of 133748608 is about 511.4027867350.

The spelling of 133748608 in words is "one hundred thirty-three million, seven hundred forty-eight thousand, six hundred eight".