135218224 has 20 divisors (see below), whose sum is σ = 262565536. Its totient is φ = 67459392.

The previous prime is 135218207. The next prime is 135218257. The reversal of 135218224 is 422812531.

It is a junction number, because it is equal to n+sod(n) for n = 135218192 and 135218201.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1719 + ... + 16534.

Almost surely, 2^135218224 is an apocalyptic number.

It is an amenable number.

135218224 is a deficient number, since it is larger than the sum of its proper divisors (127347312).

135218224 is a wasteful number, since it uses less digits than its factorization.

135218224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18724 (or 18718 counting only the distinct ones).

The product of its digits is 3840, while the sum is 28.

The square root of 135218224 is about 11628.3371124164. The cubic root of 135218224 is about 513.2690483769.

The spelling of 135218224 in words is "one hundred thirty-five million, two hundred eighteen thousand, two hundred twenty-four".