133316512 has 48 divisors (see below), whose sum is σ = 306960192. Its totient is φ = 55802880.

The previous prime is 133316507. The next prime is 133316527. The reversal of 133316512 is 215613331.

It is a super-2 number, since 2×133316512² = 35546584743692288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2712 + ... + 16552.

It is an arithmetic number, because the mean of its divisors is an integer number (6395004).

Almost surely, 2^133316512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133316512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153480096).

133316512 is an abundant number, since it is smaller than the sum of its proper divisors (173643680).

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

133316512 is a wasteful number, since it uses less digits than its factorization.

133316512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13901 (or 13893 counting only the distinct ones).

The product of its digits is 1620, while the sum is 25.

The square root of 133316512 is about 11546.2769757182. The cubic root of 133316512 is about 510.8514701148.

Adding to 133316512 its reverse (215613331), we get a palindrome (348929843).

The spelling of 133316512 in words is "one hundred thirty-three million, three hundred sixteen thousand, five hundred twelve".