133203412 has 12 divisors (see below), whose sum is σ = 233383360. Its totient is φ = 66522456.

The previous prime is 133203403. The next prime is 133203439. The reversal of 133203412 is 214302331.

133203412 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 133203412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15948 + ... + 22819.

Almost surely, 2^133203412 is an apocalyptic number.

It is an amenable number.

133203412 is a deficient number, since it is larger than the sum of its proper divisors (100179948).

133203412 is a wasteful number, since it uses less digits than its factorization.

133203412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39630 (or 39628 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 133203412 is about 11541.3782539175. The cubic root of 133203412 is about 510.7069677655.

Adding to 133203412 its reverse (214302331), we get a palindrome (347505743).

The spelling of 133203412 in words is "one hundred thirty-three million, two hundred three thousand, four hundred twelve".