133797744 has 70 divisors (see below), whose sum is σ = 388705776. Its totient is φ = 44595360.

The previous prime is 133797733. The next prime is 133797773. The reversal of 133797744 is 447797331.

It is a self number, because there is not a number n which added to its sum of digits gives 133797744.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 5929 + ... + 17399.

Almost surely, 2^133797744 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 133797744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194352888).

133797744 is an abundant number, since it is smaller than the sum of its proper divisors (254908032).

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

133797744 is an equidigital number, since it uses as much as digits as its factorization.

133797744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11497 (or 11476 counting only the distinct ones).

The product of its digits is 444528, while the sum is 45.

The square root of 133797744 is about 11567.0974751664. The cubic root of 133797744 is about 511.4654047344.

The spelling of 133797744 in words is "one hundred thirty-three million, seven hundred ninety-seven thousand, seven hundred forty-four".