115085 has 4 divisors (see below), whose sum is σ = 138108. Its totient is φ = 92064.
The previous prime is 115079. The next prime is 115099. The reversal of 115085 is 580511.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 580511 = 613 ⋅947.
It can be written as a sum of positive squares in 2 ways, for example, as 51076 + 64009 = 226^2 + 253^2 .
It is a cyclic number.
It is not a de Polignac number, because 115085 - 26 = 115021 is a prime.
It is a Duffinian number.
It is a plaindrome in base 6.
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, 11504 + ... + 11513.
It is an arithmetic number, because the mean of its divisors is an integer number (34527).
2115085 is an apocalyptic number.
It is an amenable number.
115085 is a deficient number, since it is larger than the sum of its proper divisors (23023).
115085 is an equidigital number, since it uses as much as digits as its factorization.
115085 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 23022.
The product of its (nonzero) digits is 200, while the sum is 20.
The square root of 115085 is about 339.2418016695. The cubic root of 115085 is about 48.6414195270.
Adding to 115085 its reverse (580511), we get a palindrome (695596).
The spelling of 115085 in words is "one hundred fifteen thousand, eighty-five".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.069 sec. • engine limits •