133318632 has 16 divisors (see below), whose sum is σ = 333296640. Its totient is φ = 44439536.

The previous prime is 133318621. The next prime is 133318651. The reversal of 133318632 is 236813331.

133318632 is nontrivially palindromic in base 9.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 133318632.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2777448 + ... + 2777495.

It is an arithmetic number, because the mean of its divisors is an integer number (20831040).

Almost surely, 2^133318632 is an apocalyptic number.

133318632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

133318632 is an abundant number, since it is smaller than the sum of its proper divisors (199978008).

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

133318632 is a wasteful number, since it uses less digits than its factorization.

133318632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5554952 (or 5554948 counting only the distinct ones).

The product of its digits is 7776, while the sum is 30.

The square root of 133318632 is about 11546.3687798372. The cubic root of 133318632 is about 510.8541779549.

The spelling of 133318632 in words is "one hundred thirty-three million, three hundred eighteen thousand, six hundred thirty-two".