115508081 has 8 divisors (see below), whose sum is σ = 131710824. Its totient is φ = 100350720.

The previous prime is 115508051. The next prime is 115508083. The reversal of 115508081 is 180805511.

It can be written as a sum of positive squares in 4 ways, for example, as 10137856 + 105370225 = 3184^2 + 10265^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115508081 is a prime.

It is a super-2 number, since 2×115508081² = 26684233552605122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115508083) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 261110 + ... + 261551.

It is an arithmetic number, because the mean of its divisors is an integer number (16463853).

Almost surely, 2^115508081 is an apocalyptic number.

It is an amenable number.

115508081 is a deficient number, since it is larger than the sum of its proper divisors (16202743).

115508081 is a wasteful number, since it uses less digits than its factorization.

115508081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522691.

The product of its (nonzero) digits is 1600, while the sum is 29.

The square root of 115508081 is about 10747.4685856717. The cubic root of 115508081 is about 487.0095260727.

The spelling of 115508081 in words is "one hundred fifteen million, five hundred eight thousand, eighty-one".