136505252 has 24 divisors (see below), whose sum is σ = 257615736. Its totient is φ = 62915328.

The previous prime is 136505231. The next prime is 136505261. The reversal of 136505252 is 252505631.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6180196 + 130325056 = 2486^2 + 11416^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50528 + ... + 53160.

It is an arithmetic number, because the mean of its divisors is an integer number (10733989).

Almost surely, 2^136505252 is an apocalyptic number.

It is an amenable number.

136505252 is a deficient number, since it is larger than the sum of its proper divisors (121110484).

136505252 is a wasteful number, since it uses less digits than its factorization.

136505252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3647 (or 3645 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 136505252 is about 11683.5462082366. The cubic root of 136505252 is about 514.8923669873.

The spelling of 136505252 in words is "one hundred thirty-six million, five hundred five thousand, two hundred fifty-two".