99115 has 8 divisors (see below), whose sum is σ = 121968. Its totient is φ = 77280.

The previous prime is 99109. The next prime is 99119. The reversal of 99115 is 51199.

99115 is nontrivially palindromic in base 13.

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

It is not a de Polignac number, because 99115 - 2⁵ = 99083 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 99115.

It is not an unprimeable number, because it can be changed into a prime (99119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16 + ... + 445.

It is an arithmetic number, because the mean of its divisors is an integer number (15246).

2⁹⁹¹¹⁵ is an apocalyptic number.

99115 is a deficient number, since it is larger than the sum of its proper divisors (22853).

99115 is a wasteful number, since it uses less digits than its factorization.

99115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509.

The product of its digits is 405, while the sum is 25.

The square root of 99115 is about 314.8253484077. The cubic root of 99115 is about 46.2785555335.

The spelling of 99115 in words is "ninety-nine thousand, one hundred fifteen".