136082509 has 2 divisors, whose sum is σ = 136082510. Its totient is φ = 136082508.

The previous prime is 136082491. The next prime is 136082519. The reversal of 136082509 is 905280631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81396484 + 54686025 = 9022^2 + 7395^2 .

It is a cyclic number.

It is not a de Polignac number, because 136082509 - 2⁷ = 136082381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136082519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68041254 + 68041255.

It is an arithmetic number, because the mean of its divisors is an integer number (68041255).

Almost surely, 2^136082509 is an apocalyptic number.

It is an amenable number.

136082509 is a deficient number, since it is larger than the sum of its proper divisors (1).

136082509 is an equidigital number, since it uses as much as digits as its factorization.

136082509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 136082509 is about 11665.4407975010. The cubic root of 136082509 is about 514.3602941041.

The spelling of 136082509 in words is "one hundred thirty-six million, eighty-two thousand, five hundred nine".