133555532 has 48 divisors (see below), whose sum is σ = 264134304. Its totient is φ = 58560000.

The previous prime is 133555531. The next prime is 133555561. The reversal of 133555532 is 235555331.

It is not an unprimeable number, because it can be changed into a prime (133555531) 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, 181838 + ... + 182570.

It is an arithmetic number, because the mean of its divisors is an integer number (5502798).

Almost surely, 2^133555532 is an apocalyptic number.

It is an amenable number.

133555532 is a deficient number, since it is larger than the sum of its proper divisors (130578772).

133555532 is a wasteful number, since it uses less digits than its factorization.

133555532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890 (or 888 counting only the distinct ones).

The product of its digits is 33750, while the sum is 32.

The square root of 133555532 is about 11556.6228631032. The cubic root of 133555532 is about 511.1565856550.

It can be divided in two parts, 1 and 33555532, that added together give a palindrome (33555533).

The spelling of 133555532 in words is "one hundred thirty-three million, five hundred fifty-five thousand, five hundred thirty-two".