135216108 has 48 divisors (see below), whose sum is σ = 352635360. Its totient is φ = 44805312.

The previous prime is 135216083. The next prime is 135216127. The reversal of 135216108 is 801612531.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 15066 + ... + 22302.

It is an arithmetic number, because the mean of its divisors is an integer number (7346570).

Almost surely, 2^135216108 is an apocalyptic number.

135216108 is a gapful number since it is divisible by the number (18) 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 135216108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176317680).

135216108 is an abundant number, since it is smaller than the sum of its proper divisors (217419252).

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

135216108 is a wasteful number, since it uses less digits than its factorization.

135216108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7423 (or 7415 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 135216108 is about 11628.2461274261. The cubic root of 135216108 is about 513.2663710184.

Adding to 135216108 its reverse (801612531), we get a palindrome (936828639).

The spelling of 135216108 in words is "one hundred thirty-five million, two hundred sixteen thousand, one hundred eight".