133112512 has 84 divisors (see below), whose sum is σ = 295997376. Its totient is φ = 59304960.

The previous prime is 133112503. The next prime is 133112513. The reversal of 133112512 is 215211331.

It is a self number, because there is not a number n which added to its sum of digits gives 133112512.

It is not an unprimeable number, because it can be changed into a prime (133112513) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 335098 + ... + 335494.

Almost surely, 2^133112512 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 133112512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147998688).

133112512 is an abundant number, since it is smaller than the sum of its proper divisors (162884864).

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

133112512 is a wasteful number, since it uses less digits than its factorization.

133112512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466 (or 443 counting only the distinct ones).

The product of its digits is 180, while the sum is 19.

The square root of 133112512 is about 11537.4395773066. The cubic root of 133112512 is about 510.5907699728.

Adding to 133112512 its reverse (215211331), we get a palindrome (348323843).

The spelling of 133112512 in words is "one hundred thirty-three million, one hundred twelve thousand, five hundred twelve".