133442044 has 48 divisors (see below), whose sum is σ = 264430656. Its totient is φ = 58572800.

The previous prime is 133442041. The next prime is 133442047. The reversal of 133442044 is 440244331.

It is an interprime number because it is at equal distance from previous prime (133442041) and next prime (133442047).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133442041) 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 15 ways as a sum of consecutive naturals, for example, 63084 + ... + 65164.

It is an arithmetic number, because the mean of its divisors is an integer number (5508972).

Almost surely, 2^133442044 is an apocalyptic number.

It is an amenable number.

133442044 is a deficient number, since it is larger than the sum of its proper divisors (130988612).

133442044 is a wasteful number, since it uses less digits than its factorization.

133442044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2166 (or 2164 counting only the distinct ones).

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

The square root of 133442044 is about 11551.7117346305. The cubic root of 133442044 is about 511.0117605605.

Adding to 133442044 its reverse (440244331), we get a palindrome (573686375).

The spelling of 133442044 in words is "one hundred thirty-three million, four hundred forty-two thousand, forty-four".