133533118 has 4 divisors (see below), whose sum is σ = 200299680. Its totient is φ = 66766558.

The previous prime is 133533109. The next prime is 133533131. The reversal of 133533118 is 811335331.

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 (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33383278 + ... + 33383281.

It is an arithmetic number, because the mean of its divisors is an integer number (50074920).

Almost surely, 2^133533118 is an apocalyptic number.

133533118 is a deficient number, since it is larger than the sum of its proper divisors (66766562).

133533118 is an equidigital number, since it uses as much as digits as its factorization.

133533118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66766561.

The product of its digits is 3240, while the sum is 28.

The square root of 133533118 is about 11555.6530754432. The cubic root of 133533118 is about 511.1279890492.

Adding to 133533118 its reverse (811335331), we get a palindrome (944868449).

It can be divided in two parts, 13353 and 3118, that added together give a triangular number (16471 = T₁₈₁).

The spelling of 133533118 in words is "one hundred thirty-three million, five hundred thirty-three thousand, one hundred eighteen".