133542118 has 4 divisors (see below), whose sum is σ = 200313180. Its totient is φ = 66771058.

The previous prime is 133542109. The next prime is 133542121. The reversal of 133542118 is 811245331.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent 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 as a sum of consecutive naturals, namely, 33385528 + ... + 33385531.

It is an arithmetic number, because the mean of its divisors is an integer number (50078295).

Almost surely, 2^133542118 is an apocalyptic number.

133542118 is a deficient number, since it is larger than the sum of its proper divisors (66771062).

133542118 is an equidigital number, since it uses as much as digits as its factorization.

133542118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66771061.

The product of its digits is 2880, while the sum is 28.

The square root of 133542118 is about 11556.0424886723. The cubic root of 133542118 is about 511.1394719647.

Adding to 133542118 its reverse (811245331), we get a palindrome (944787449).

The spelling of 133542118 in words is "one hundred thirty-three million, five hundred forty-two thousand, one hundred eighteen".