133211418 has 8 divisors (see below), whose sum is σ = 266422848. Its totient is φ = 44403804.

The previous prime is 133211417. The next prime is 133211437. The reversal of 133211418 is 814112331.

133211418 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

133211418 is an admirable number.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (133211417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11100946 + ... + 11100957.

It is an arithmetic number, because the mean of its divisors is an integer number (33302856).

Almost surely, 2^133211418 is an apocalyptic number.

133211418 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133211418 is a wasteful number, since it uses less digits than its factorization.

133211418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22201908.

The product of its digits is 576, while the sum is 24.

The square root of 133211418 is about 11541.7250876981. The cubic root of 133211418 is about 510.7171993304.

Adding to 133211418 its reverse (814112331), we get a palindrome (947323749).

The spelling of 133211418 in words is "one hundred thirty-three million, two hundred eleven thousand, four hundred eighteen".