133803812 has 24 divisors (see below), whose sum is σ = 243005952. Its totient is φ = 64396800.

The previous prime is 133803809. The next prime is 133803823. The reversal of 133803812 is 218308331.

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, 21137 + ... + 26727.

It is an arithmetic number, because the mean of its divisors is an integer number (10125248).

Almost surely, 2^133803812 is an apocalyptic number.

It is an amenable number.

133803812 is a deficient number, since it is larger than the sum of its proper divisors (109202140).

133803812 is a wasteful number, since it uses less digits than its factorization.

133803812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5819 (or 5817 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 133803812 is about 11567.3597678986. The cubic root of 133803812 is about 511.4731366166.

The spelling of 133803812 in words is "one hundred thirty-three million, eight hundred three thousand, eight hundred twelve".