133013212 has 12 divisors (see below), whose sum is σ = 233005696. Its totient is φ = 66440160.

The previous prime is 133013207. The next prime is 133013213. The reversal of 133013212 is 212310331.

133013212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133013213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11964 + ... + 20227.

Almost surely, 2^133013212 is an apocalyptic number.

It is an amenable number.

133013212 is a deficient number, since it is larger than the sum of its proper divisors (99992484).

133013212 is a wasteful number, since it uses less digits than its factorization.

133013212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33228 (or 33226 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 133013212 is about 11533.1353932918. The cubic root of 133013212 is about 510.4637739565.

Adding to 133013212 its reverse (212310331), we get a palindrome (345323543).

It can be divided in two parts, 133013 and 212, that added together give a square (133225 = 365²).

The spelling of 133013212 in words is "one hundred thirty-three million, thirteen thousand, two hundred twelve".