135213108 has 12 divisors (see below), whose sum is σ = 315497280. Its totient is φ = 45071032.

The previous prime is 135213107. The next prime is 135213173. The reversal of 135213108 is 801312531.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135213107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5633868 + ... + 5633891.

It is an arithmetic number, because the mean of its divisors is an integer number (26291440).

Almost surely, 2^135213108 is an apocalyptic number.

It is an amenable number.

135213108 is an abundant number, since it is smaller than the sum of its proper divisors (180284172).

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

135213108 is a wasteful number, since it uses less digits than its factorization.

135213108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11267766 (or 11267764 counting only the distinct ones).

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

The square root of 135213108 is about 11628.1171304730. The cubic root of 135213108 is about 513.2625750937.

Adding to 135213108 its reverse (801312531), we get a palindrome (936525639).

The spelling of 135213108 in words is "one hundred thirty-five million, two hundred thirteen thousand, one hundred eight".