133335340 has 48 divisors (see below), whose sum is σ = 291836160. Its totient is φ = 51114240.

The previous prime is 133335311. The next prime is 133335353. The reversal of 133335340 is 43533331.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66594 + ... + 68566.

It is an arithmetic number, because the mean of its divisors is an integer number (6079920).

Almost surely, 2^133335340 is an apocalyptic number.

133335340 is a gapful number since it is divisible by the number (10) 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 133335340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145918080).

133335340 is an abundant number, since it is smaller than the sum of its proper divisors (158500820).

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

133335340 is a wasteful number, since it uses less digits than its factorization.

133335340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2122 (or 2120 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 25.

The square root of 133335340 is about 11547.0922746811. The cubic root of 133335340 is about 510.8755177955.

Adding to 133335340 its reverse (43533331), we get a palindrome (176868671).

The spelling of 133335340 in words is "one hundred thirty-three million, three hundred thirty-five thousand, three hundred forty".