136009752025 has 81 divisors (see below), whose sum is σ = 201874380087. Its totient is φ = 90635059200.

The previous prime is 136009752007. The next prime is 136009752041. The reversal of 136009752025 is 520257900631.

The square root of 136009752025 is 368795.

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

It can be written as a sum of positive squares in 13 ways, for example, as 74173977801 + 61835774224 = 272349^2 + 248668^2 .

It is not a de Polignac number, because 136009752025 - 2¹¹ = 136009749977 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 529220697 + ... + 529220953.

Almost surely, 2^136009752025 is an apocalyptic number.

136009752025 is the 368795-th square number.

136009752025 is the 184398-th centered octagonal number.

It is an amenable number.

136009752025 is a deficient number, since it is larger than the sum of its proper divisors (65864628062).

136009752025 is an frugal number, since it uses more digits than its factorization.

136009752025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620 (or 310 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 40.

It can be divided in two parts, 13600 and 9752025, that added together give a 10-th power (9765625 = 5¹⁰).

The spelling of 136009752025 in words is "one hundred thirty-six billion, nine million, seven hundred fifty-two thousand, twenty-five".