136305625 has 15 divisors (see below), whose sum is σ = 170693017. Its totient is φ = 108811000.

The previous prime is 136305623. The next prime is 136305641. The reversal of 136305625 is 526503631.

The square root of 136305625 is 11675.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 2 ways, for example, as 10686361 + 125619264 = 3269^2 + 11208^2 .

It is not a de Polignac number, because 136305625 - 2¹ = 136305623 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136305623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 291642 + ... + 292108.

Almost surely, 2^136305625 is an apocalyptic number.

136305625 is the 11675-th square number.

136305625 is the 5838-th centered octagonal number.

It is an amenable number.

136305625 is a deficient number, since it is larger than the sum of its proper divisors (34387392).

136305625 is an frugal number, since it uses more digits than its factorization.

136305625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954 (or 472 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 31.

The cubic root of 136305625 is about 514.6412495073.

The spelling of 136305625 in words is "one hundred thirty-six million, three hundred five thousand, six hundred twenty-five".