135231180 has 96 divisors (see below), whose sum is σ = 441638400. Its totient is φ = 30905280.

The previous prime is 135231179. The next prime is 135231199. The reversal of 135231180 is 81132531.

135231180 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 135231180.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17295 + ... + 23865.

It is an arithmetic number, because the mean of its divisors is an integer number (4600400).

Almost surely, 2^135231180 is an apocalyptic number.

135231180 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 135231180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220819200).

135231180 is an abundant number, since it is smaller than the sum of its proper divisors (306407220).

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

135231180 is a wasteful number, since it uses less digits than its factorization.

135231180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6604 (or 6588 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 135231180 is about 11628.8941864650. The cubic root of 135231180 is about 513.2854408946.

The spelling of 135231180 in words is "one hundred thirty-five million, two hundred thirty-one thousand, one hundred eighty".