133633442 has 8 divisors (see below), whose sum is σ = 201009600. Its totient is φ = 66630244.

The previous prime is 133633433. The next prime is 133633453. The reversal of 133633442 is 244336331.

It is a happy number.

133633442 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.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92342 + ... + 93777.

It is an arithmetic number, because the mean of its divisors is an integer number (25126200).

Almost surely, 2^133633442 is an apocalyptic number.

133633442 is a deficient number, since it is larger than the sum of its proper divisors (67376158).

133633442 is a wasteful number, since it uses less digits than its factorization.

133633442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186480.

The product of its digits is 15552, while the sum is 29.

The square root of 133633442 is about 11559.9931660879. The cubic root of 133633442 is about 511.2559612172.

Adding to 133633442 its reverse (244336331), we get a palindrome (377969773).

The spelling of 133633442 in words is "one hundred thirty-three million, six hundred thirty-three thousand, four hundred forty-two".