116505215 has 4 divisors (see below), whose sum is σ = 139806264. Its totient is φ = 93204168.

The previous prime is 116505187. The next prime is 116505229. The reversal of 116505215 is 512505611.

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

It is a cyclic number.

It is not a de Polignac number, because 116505215 - 2¹⁰ = 116504191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11650517 + ... + 11650526.

It is an arithmetic number, because the mean of its divisors is an integer number (34951566).

Almost surely, 2^116505215 is an apocalyptic number.

116505215 is a deficient number, since it is larger than the sum of its proper divisors (23301049).

116505215 is an equidigital number, since it uses as much as digits as its factorization.

116505215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23301048.

The product of its (nonzero) digits is 1500, while the sum is 26.

The square root of 116505215 is about 10793.7581499680. The cubic root of 116505215 is about 488.4068974300.

The spelling of 116505215 in words is "one hundred sixteen million, five hundred five thousand, two hundred fifteen".