133289252 has 12 divisors (see below), whose sum is σ = 235661580. Its totient is φ = 65957376.

The previous prime is 133289251. The next prime is 133289267. The reversal of 133289252 is 252982331.

133289252 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 75620416 + 57668836 = 8696^2 + 7594^2 .

It is not an unprimeable number, because it can be changed into a prime (133289251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171377 + ... + 172152.

It is an arithmetic number, because the mean of its divisors is an integer number (19638465).

Almost surely, 2^133289252 is an apocalyptic number.

It is an amenable number.

133289252 is a deficient number, since it is larger than the sum of its proper divisors (102372328).

133289252 is a wasteful number, since it uses less digits than its factorization.

133289252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343630 (or 343628 counting only the distinct ones).

The product of its digits is 25920, while the sum is 35.

The square root of 133289252 is about 11545.0964482762. The cubic root of 133289252 is about 510.8166488209.

The spelling of 133289252 in words is "one hundred thirty-three million, two hundred eighty-nine thousand, two hundred fifty-two".