133231132 has 24 divisors (see below), whose sum is σ = 237762000. Its totient is φ = 65310336.

The previous prime is 133231129. The next prime is 133231139. The reversal of 133231132 is 231132331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133231139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50994 + ... + 53542.

It is an arithmetic number, because the mean of its divisors is an integer number (9906750).

Almost surely, 2^133231132 is an apocalyptic number.

It is an amenable number.

133231132 is a deficient number, since it is larger than the sum of its proper divisors (104530868).

133231132 is a wasteful number, since it uses less digits than its factorization.

133231132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2805 (or 2803 counting only the distinct ones).

The product of its digits is 324, while the sum is 19.

The square root of 133231132 is about 11542.5790878815. The cubic root of 133231132 is about 510.7423918211.

Adding to 133231132 its reverse (231132331), we get a palindrome (364363463).

The spelling of 133231132 in words is "one hundred thirty-three million, two hundred thirty-one thousand, one hundred thirty-two".