133841916 has 72 divisors (see below), whose sum is σ = 375794160. Its totient is φ = 41176512.

The previous prime is 133841893. The next prime is 133841921. The reversal of 133841916 is 619148331.

133841916 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14586 + ... + 21918.

Almost surely, 2^133841916 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 133841916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187897080).

133841916 is an abundant number, since it is smaller than the sum of its proper divisors (241952244).

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

133841916 is a wasteful number, since it uses less digits than its factorization.

133841916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7372 (or 7351 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 133841916 is about 11569.0066989349. The cubic root of 133841916 is about 511.5216836208.

The spelling of 133841916 in words is "one hundred thirty-three million, eight hundred forty-one thousand, nine hundred sixteen".