133310442 has 8 divisors (see below), whose sum is σ = 266620896. Its totient is φ = 44436812.

The previous prime is 133310417. The next prime is 133310459. The reversal of 133310442 is 244013331.

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

133310442 is an admirable 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 3 ways as a sum of consecutive naturals, for example, 11109198 + ... + 11109209.

It is an arithmetic number, because the mean of its divisors is an integer number (33327612).

Almost surely, 2^133310442 is an apocalyptic number.

133310442 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.

133310442 is a wasteful number, since it uses less digits than its factorization.

133310442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22218412.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 133310442 is about 11546.0141174346. The cubic root of 133310442 is about 510.8437168480.

Adding to 133310442 its reverse (244013331), we get a palindrome (377323773).

The spelling of 133310442 in words is "one hundred thirty-three million, three hundred ten thousand, four hundred forty-two".