136405224 has 48 divisors (see below), whose sum is σ = 371088900. Its totient is φ = 45264384.

The previous prime is 136405207. The next prime is 136405231. The reversal of 136405224 is 422504631.

136405224 is a `hidden beast` number, since 1 + 36 + 405 + 224 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 115992900 + 20412324 = 10770^2 + 4518^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12352 + ... + 20624.

Almost surely, 2^136405224 is an apocalyptic number.

It is an amenable number.

136405224 is an abundant number, since it is smaller than the sum of its proper divisors (234683676).

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

136405224 is a wasteful number, since it uses less digits than its factorization.

136405224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8514 (or 8507 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 136405224 is about 11679.2647028826. The cubic root of 136405224 is about 514.7665690460.

Adding to 136405224 its reverse (422504631), we get a palindrome (558909855).

The spelling of 136405224 in words is "one hundred thirty-six million, four hundred five thousand, two hundred twenty-four".