133385212 has 6 divisors (see below), whose sum is σ = 233424128. Its totient is φ = 66692604.

The previous prime is 133385209. The next prime is 133385221. The reversal of 133385212 is 212583331.

It is a super-2 number, since 2×133385212² = 35583229560569888, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 16673148 + ... + 16673155.

Almost surely, 2^133385212 is an apocalyptic number.

It is an amenable number.

133385212 is a deficient number, since it is larger than the sum of its proper divisors (100038916).

133385212 is a wasteful number, since it uses less digits than its factorization.

133385212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33346307 (or 33346305 counting only the distinct ones).

The product of its digits is 4320, while the sum is 28.

The square root of 133385212 is about 11549.2515774833. The cubic root of 133385212 is about 510.9392048567.

The spelling of 133385212 in words is "one hundred thirty-three million, three hundred eighty-five thousand, two hundred twelve".