133542912 has 88 divisors (see below), whose sum is σ = 368460000. Its totient is φ = 42950656.

The previous prime is 133542911. The next prime is 133542917. The reversal of 133542912 is 219245331.

It is a nialpdrome in base 8.

It is a self number, because there is not a number n which added to its sum of digits gives 133542912.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133542911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88339 + ... + 89837.

Almost surely, 2^133542912 is an apocalyptic number.

133542912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133542912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184230000).

133542912 is an abundant number, since it is smaller than the sum of its proper divisors (234917088).

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

133542912 is a wasteful number, since it uses less digits than its factorization.

133542912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1551 (or 1533 counting only the distinct ones).

The product of its digits is 6480, while the sum is 30.

The square root of 133542912 is about 11556.0768429429. The cubic root of 133542912 is about 511.1404849883.

The spelling of 133542912 in words is "one hundred thirty-three million, five hundred forty-two thousand, nine hundred twelve".