133012056 has 16 divisors (see below), whose sum is σ = 332530200. Its totient is φ = 44337344.

The previous prime is 133012049. The next prime is 133012057. The reversal of 133012056 is 650210331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133012057) 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, 2771061 + ... + 2771108.

Almost surely, 2^133012056 is an apocalyptic number.

It is an amenable number.

133012056 is an abundant number, since it is smaller than the sum of its proper divisors (199518144).

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

133012056 is a wasteful number, since it uses less digits than its factorization.

133012056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5542178 (or 5542174 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 133012056 is about 11533.0852767159. The cubic root of 133012056 is about 510.4622951614.

Adding to 133012056 its reverse (650210331), we get a palindrome (783222387).

The spelling of 133012056 in words is "one hundred thirty-three million, twelve thousand, fifty-six".