136870325 has 6 divisors (see below), whose sum is σ = 169719234. Its totient is φ = 109496240.

The previous prime is 136870303. The next prime is 136870337. The reversal of 136870325 is 523078631.

It can be written as a sum of positive squares in 3 ways, for example, as 22829284 + 114041041 = 4778^2 + 10679^2 .

It is a de Polignac number, because none of the positive numbers 2^k-136870325 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2737382 + ... + 2737431.

It is an arithmetic number, because the mean of its divisors is an integer number (28286539).

Almost surely, 2^136870325 is an apocalyptic number.

It is an amenable number.

136870325 is a deficient number, since it is larger than the sum of its proper divisors (32848909).

136870325 is an equidigital number, since it uses as much as digits as its factorization.

136870325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5474823 (or 5474818 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 136870325 is about 11699.1591578198. The cubic root of 136870325 is about 515.3509719943.

The spelling of 136870325 in words is "one hundred thirty-six million, eight hundred seventy thousand, three hundred twenty-five".