133441138 has 8 divisors (see below), whose sum is σ = 200959920. Its totient is φ = 66454500.

The previous prime is 133441127. The next prime is 133441141. The reversal of 133441138 is 831144331.

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, 132408 + ... + 133411.

It is an arithmetic number, because the mean of its divisors is an integer number (25119990).

Almost surely, 2^133441138 is an apocalyptic number.

133441138 is a deficient number, since it is larger than the sum of its proper divisors (67518782).

133441138 is a wasteful number, since it uses less digits than its factorization.

133441138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266072.

The product of its digits is 3456, while the sum is 28.

The square root of 133441138 is about 11551.6725195965. The cubic root of 133441138 is about 511.0106040592.

Adding to 133441138 its reverse (831144331), we get a palindrome (964585469).

The spelling of 133441138 in words is "one hundred thirty-three million, four hundred forty-one thousand, one hundred thirty-eight".