133283256 has 16 divisors (see below), whose sum is σ = 333208200. Its totient is φ = 44427744.

The previous prime is 133283243. The next prime is 133283257. The reversal of 133283256 is 652382331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133283257) 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, 2776711 + ... + 2776758.

Almost surely, 2^133283256 is an apocalyptic number.

It is an amenable number.

133283256 is an abundant number, since it is smaller than the sum of its proper divisors (199924944).

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

133283256 is a wasteful number, since it uses less digits than its factorization.

133283256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5553478 (or 5553474 counting only the distinct ones).

The product of its digits is 25920, while the sum is 33.

The square root of 133283256 is about 11544.8367680102. The cubic root of 133283256 is about 510.8089890321.

The spelling of 133283256 in words is "one hundred thirty-three million, two hundred eighty-three thousand, two hundred fifty-six".