133253256 has 16 divisors (see below), whose sum is σ = 333133200. Its totient is φ = 44417744.

The previous prime is 133253227. The next prime is 133253257. The reversal of 133253256 is 652352331.

It is not an unprimeable number, because it can be changed into a prime (133253257) 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, 2776086 + ... + 2776133.

It is an arithmetic number, because the mean of its divisors is an integer number (20820825).

Almost surely, 2^133253256 is an apocalyptic number.

It is an amenable number.

133253256 is an abundant number, since it is smaller than the sum of its proper divisors (199879944).

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

133253256 is a wasteful number, since it uses less digits than its factorization.

133253256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5552228 (or 5552224 counting only the distinct ones).

The product of its digits is 16200, while the sum is 30.

The square root of 133253256 is about 11543.5374127691. The cubic root of 133253256 is about 510.7706610880.

The spelling of 133253256 in words is "one hundred thirty-three million, two hundred fifty-three thousand, two hundred fifty-six".