136224252 has 36 divisors (see below), whose sum is σ = 356221320. Its totient is φ = 43841952.

The previous prime is 136224251. The next prime is 136224259. The reversal of 136224252 is 252422631.

It is a happy number.

136224252 is a `hidden beast` number, since 13 + 622 + 4 + 25 + 2 = 666.

136224252 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136224251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64198 + ... + 66285.

Almost surely, 2^136224252 is an apocalyptic number.

136224252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

136224252 is an abundant number, since it is smaller than the sum of its proper divisors (219997068).

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

136224252 is a wasteful number, since it uses less digits than its factorization.

136224252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130522 (or 130517 counting only the distinct ones).

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

The square root of 136224252 is about 11671.5145546754. The cubic root of 136224252 is about 514.5388173474.

Adding to 136224252 its reverse (252422631), we get a palindrome (388646883).

The spelling of 136224252 in words is "one hundred thirty-six million, two hundred twenty-four thousand, two hundred fifty-two".