133442212 has 12 divisors (see below), whose sum is σ = 238492800. Its totient is φ = 65301416.

The previous prime is 133442209. The next prime is 133442219. The reversal of 133442212 is 212244331.

It is not an unprimeable number, because it can be changed into a prime (133442219) 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, 354712 + ... + 355087.

It is an arithmetic number, because the mean of its divisors is an integer number (19874400).

Almost surely, 2^133442212 is an apocalyptic number.

It is an amenable number.

133442212 is a deficient number, since it is larger than the sum of its proper divisors (105050588).

133442212 is a wasteful number, since it uses less digits than its factorization.

133442212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709850 (or 709848 counting only the distinct ones).

The product of its digits is 1152, while the sum is 22.

The square root of 133442212 is about 11551.7190062778. The cubic root of 133442212 is about 511.0119750105.

Adding to 133442212 its reverse (212244331), we get a palindrome (345686543).

The spelling of 133442212 in words is "one hundred thirty-three million, four hundred forty-two thousand, two hundred twelve".