133706752 has 44 divisors (see below), whose sum is σ = 274584580. Its totient is φ = 65028096.

The previous prime is 133706723. The next prime is 133706753. The reversal of 133706752 is 257607331.

It can be written as a sum of positive squares in 2 ways, for example, as 65545216 + 68161536 = 8096^2 + 8256^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133706753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36124 + ... + 39652.

Almost surely, 2^133706752 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 133706752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137292290).

133706752 is an abundant number, since it is smaller than the sum of its proper divisors (140877828).

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

133706752 is an equidigital number, since it uses as much as digits as its factorization.

133706752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3586 (or 3568 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 34.

The square root of 133706752 is about 11563.1635809583. The cubic root of 133706752 is about 511.3494341341.

The spelling of 133706752 in words is "one hundred thirty-three million, seven hundred six thousand, seven hundred fifty-two".