115809085 has 16 divisors (see below), whose sum is σ = 167184000. Its totient is φ = 75231936.

The previous prime is 115809079. The next prime is 115809091. The reversal of 115809085 is 580908511.

It is an interprime number because it is at equal distance from previous prime (115809079) and next prime (115809091).

It is a cyclic number.

It is not a de Polignac number, because 115809085 - 2³ = 115809077 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86410 + ... + 87739.

It is an arithmetic number, because the mean of its divisors is an integer number (10449000).

Almost surely, 2^115809085 is an apocalyptic number.

It is an amenable number.

115809085 is a deficient number, since it is larger than the sum of its proper divisors (51374915).

115809085 is a wasteful number, since it uses less digits than its factorization.

115809085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174180.

The product of its (nonzero) digits is 14400, while the sum is 37.

The square root of 115809085 is about 10761.4629581670. The cubic root of 115809085 is about 487.4321939443.

The spelling of 115809085 in words is "one hundred fifteen million, eight hundred nine thousand, eighty-five".