133894252 has 24 divisors (see below), whose sum is σ = 237116880. Its totient is φ = 66151680.

The previous prime is 133894213. The next prime is 133894259. The reversal of 133894252 is 252498331.

It is not an unprimeable number, because it can be changed into a prime (133894259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155808 + ... + 156664.

It is an arithmetic number, because the mean of its divisors is an integer number (9879870).

Almost surely, 2^133894252 is an apocalyptic number.

It is an amenable number.

133894252 is a deficient number, since it is larger than the sum of its proper divisors (103222628).

133894252 is a wasteful number, since it uses less digits than its factorization.

133894252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1281 (or 1279 counting only the distinct ones).

The product of its digits is 51840, while the sum is 37.

The square root of 133894252 is about 11571.2683833709. The cubic root of 133894252 is about 511.5883481132.

The spelling of 133894252 in words is "one hundred thirty-three million, eight hundred ninety-four thousand, two hundred fifty-two".