135105224 has 8 divisors (see below), whose sum is σ = 253322310. Its totient is φ = 67552608.

The previous prime is 135105169. The next prime is 135105227. The reversal of 135105224 is 422501531.

It can be written as a sum of positive squares in only one way, i.e., 129732100 + 5373124 = 11390^2 + 2318^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 135105224.

It is not an unprimeable number, because it can be changed into a prime (135105227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8444069 + ... + 8444084.

Almost surely, 2^135105224 is an apocalyptic number.

It is an amenable number.

135105224 is a deficient number, since it is larger than the sum of its proper divisors (118217086).

135105224 is a wasteful number, since it uses less digits than its factorization.

135105224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16888159 (or 16888155 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 135105224 is about 11623.4772766156. The cubic root of 135105224 is about 513.1260312483.

Adding to 135105224 its reverse (422501531), we get a palindrome (557606755).

The spelling of 135105224 in words is "one hundred thirty-five million, one hundred five thousand, two hundred twenty-four".