133812938 has 16 divisors (see below), whose sum is σ = 230665344. Its totient is φ = 57030480.

The previous prime is 133812929. The next prime is 133812941. The reversal of 133812938 is 839218331.

133812938 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

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, 23870 + ... + 28937.

It is an arithmetic number, because the mean of its divisors is an integer number (14416584).

Almost surely, 2^133812938 is an apocalyptic number.

133812938 is a deficient number, since it is larger than the sum of its proper divisors (96852406).

133812938 is a wasteful number, since it uses less digits than its factorization.

133812938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52997.

The product of its digits is 31104, while the sum is 38.

The square root of 133812938 is about 11567.7542332123. The cubic root of 133812938 is about 511.4847645806.

The spelling of 133812938 in words is "one hundred thirty-three million, eight hundred twelve thousand, nine hundred thirty-eight".