133012432 has 40 divisors (see below), whose sum is σ = 299534400. Its totient is φ = 56036352.

The previous prime is 133012421. The next prime is 133012433. The reversal of 133012432 is 234210331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133012433) 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 7 ways as a sum of consecutive naturals, for example, 3457 + ... + 16672.

It is an arithmetic number, because the mean of its divisors is an integer number (7488360).

Almost surely, 2^133012432 is an apocalyptic number.

It is an amenable number.

133012432 is an abundant number, since it is smaller than the sum of its proper divisors (166521968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133012432 is a wasteful number, since it uses less digits than its factorization.

133012432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20203 (or 20197 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 133012432 is about 11533.1015776330. The cubic root of 133012432 is about 510.4627761545.

Adding to 133012432 its reverse (234210331), we get a palindrome (367222763).

The spelling of 133012432 in words is "one hundred thirty-three million, twelve thousand, four hundred thirty-two".