133384318 has 4 divisors (see below), whose sum is σ = 200076480. Its totient is φ = 66692158.

The previous prime is 133384301. The next prime is 133384319. The reversal of 133384318 is 813483331.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133384319) by changing a digit.

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 as a sum of consecutive naturals, namely, 33346078 + ... + 33346081.

It is an arithmetic number, because the mean of its divisors is an integer number (50019120).

Almost surely, 2^133384318 is an apocalyptic number.

133384318 is a deficient number, since it is larger than the sum of its proper divisors (66692162).

133384318 is an equidigital number, since it uses as much as digits as its factorization.

133384318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66692161.

The product of its digits is 20736, while the sum is 34.

The square root of 133384318 is about 11549.2128736118. The cubic root of 133384318 is about 510.9380633492.

The spelling of 133384318 in words is "one hundred thirty-three million, three hundred eighty-four thousand, three hundred eighteen".