136661125 has 8 divisors (see below), whose sum is σ = 170553240. Its totient is φ = 109328800.

The previous prime is 136661117. The next prime is 136661131. The reversal of 136661125 is 521166631.

It can be written as a sum of positive squares in 4 ways, for example, as 19307236 + 117353889 = 4394^2 + 10833^2 .

It is not a de Polignac number, because 136661125 - 2³ = 136661117 is a prime.

It is a congruent number.

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, 546520 + ... + 546769.

It is an arithmetic number, because the mean of its divisors is an integer number (21319155).

Almost surely, 2^136661125 is an apocalyptic number.

It is an amenable number.

136661125 is a deficient number, since it is larger than the sum of its proper divisors (33892115).

136661125 is an equidigital number, since it uses as much as digits as its factorization.

136661125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1093304 (or 1093294 counting only the distinct ones).

The product of its digits is 6480, while the sum is 31.

The square root of 136661125 is about 11690.2149253125. The cubic root of 136661125 is about 515.0882746850.

The spelling of 136661125 in words is "one hundred thirty-six million, six hundred sixty-one thousand, one hundred twenty-five".