136317085 has 4 divisors (see below), whose sum is σ = 163580508. Its totient is φ = 109053664.

The previous prime is 136317079. The next prime is 136317091. The reversal of 136317085 is 580713631.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (136317079) and next prime (136317091).

It can be written as a sum of positive squares in 2 ways, for example, as 92505924 + 43811161 = 9618^2 + 6619^2 .

It is a cyclic number.

It is not a de Polignac number, because 136317085 - 2⁹ = 136316573 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 136317085.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13631704 + ... + 13631713.

It is an arithmetic number, because the mean of its divisors is an integer number (40895127).

Almost surely, 2^136317085 is an apocalyptic number.

It is an amenable number.

136317085 is a deficient number, since it is larger than the sum of its proper divisors (27263423).

136317085 is an equidigital number, since it uses as much as digits as its factorization.

136317085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27263422.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 136317085 is about 11675.4907819757. The cubic root of 136317085 is about 514.6556720557.

The spelling of 136317085 in words is "one hundred thirty-six million, three hundred seventeen thousand, eighty-five".