133233212 has 24 divisors (see below), whose sum is σ = 266799456. Its totient is φ = 57028608.

The previous prime is 133233209. The next prime is 133233223. The reversal of 133233212 is 212332331.

133233212 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 an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24188 + ... + 29180.

It is an arithmetic number, because the mean of its divisors is an integer number (11116644).

Almost surely, 2^133233212 is an apocalyptic number.

It is an amenable number.

133233212 is an abundant number, since it is smaller than the sum of its proper divisors (133566244).

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

133233212 is a wasteful number, since it uses less digits than its factorization.

133233212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5957 (or 5955 counting only the distinct ones).

The product of its digits is 648, while the sum is 20.

The square root of 133233212 is about 11542.6691887102. The cubic root of 133233212 is about 510.7450497051.

Adding to 133233212 its reverse (212332331), we get a palindrome (345565543).

The spelling of 133233212 in words is "one hundred thirty-three million, two hundred thirty-three thousand, two hundred twelve".