99999115 has 8 divisors (see below), whose sum is σ = 120805200. Its totient is φ = 79461792.

The previous prime is 99999113. The next prime is 99999131. The reversal of 99999115 is 51199999.

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

It is a cyclic number.

It is not a de Polignac number, because 99999115 - 2¹ = 99999113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99999113) 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, 66369 + ... + 67858.

It is an arithmetic number, because the mean of its divisors is an integer number (15100650).

Almost surely, 2^99999115 is an apocalyptic number.

99999115 is a deficient number, since it is larger than the sum of its proper divisors (20806085).

99999115 is a wasteful number, since it uses less digits than its factorization.

99999115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134381.

The product of its digits is 295245, while the sum is 52.

The square root of 99999115 is about 9999.9557499021. The cubic root of 99999115 is about 464.1575140885.

The spelling of 99999115 in words is "ninety-nine million, nine hundred ninety-nine thousand, one hundred fifteen".