133442422 has 8 divisors (see below), whose sum is σ = 201038400. Its totient is φ = 66429624.

The previous prime is 133442411. The next prime is 133442429. The reversal of 133442422 is 224244331.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133442429) 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 in 3 ways as a sum of consecutive naturals, for example, 145222 + ... + 146137.

It is an arithmetic number, because the mean of its divisors is an integer number (25129800).

Almost surely, 2^133442422 is an apocalyptic number.

133442422 is a deficient number, since it is larger than the sum of its proper divisors (67595978).

133442422 is a wasteful number, since it uses less digits than its factorization.

133442422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291590.

The product of its digits is 4608, while the sum is 25.

The square root of 133442422 is about 11551.7280958305. The cubic root of 133442422 is about 511.0122430728.

Adding to 133442422 its reverse (224244331), we get a palindrome (357686753).

The spelling of 133442422 in words is "one hundred thirty-three million, four hundred forty-two thousand, four hundred twenty-two".