133203388 has 12 divisors (see below), whose sum is σ = 233208360. Its totient is φ = 66572432.

The previous prime is 133203377. The next prime is 133203391. The reversal of 133203388 is 883302331.

133203388 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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5370 + ... + 17182.

It is an arithmetic number, because the mean of its divisors is an integer number (19434030).

Almost surely, 2^133203388 is an apocalyptic number.

It is an amenable number.

133203388 is a deficient number, since it is larger than the sum of its proper divisors (100004972).

133203388 is a wasteful number, since it uses less digits than its factorization.

133203388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14636 (or 14634 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 133203388 is about 11541.3772141803. The cubic root of 133203388 is about 510.7069370932.

The spelling of 133203388 in words is "one hundred thirty-three million, two hundred three thousand, three hundred eighty-eight".