133529266 has 16 divisors (see below), whose sum is σ = 216984600. Its totient is φ = 61626864.

The previous prime is 133529261. The next prime is 133529267. The reversal of 133529266 is 662925331.

It can be written as a sum of positive squares in 4 ways, for example, as 11758041 + 121771225 = 3429^2 + 11035^2 .

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (133529261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10801 + ... + 19588.

Almost surely, 2^133529266 is an apocalyptic number.

133529266 is a deficient number, since it is larger than the sum of its proper divisors (83455334).

133529266 is an equidigital number, since it uses as much as digits as its factorization.

133529266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30430 (or 30404 counting only the distinct ones).

The product of its digits is 58320, while the sum is 37.

The square root of 133529266 is about 11555.4864025709. The cubic root of 133529266 is about 511.1230742036.

The spelling of 133529266 in words is "one hundred thirty-three million, five hundred twenty-nine thousand, two hundred sixty-six".