99105 has 8 divisors (see below), whose sum is σ = 158592. Its totient is φ = 52848.

The previous prime is 99103. The next prime is 99109. The reversal of 99105 is 50199.

It is a happy number.

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

It is not a de Polignac number, because 99105 - 2¹ = 99103 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99103) 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, 3289 + ... + 3318.

It is an arithmetic number, because the mean of its divisors is an integer number (19824).

2⁹⁹¹⁰⁵ is an apocalyptic number.

It is an amenable number.

99105 is a deficient number, since it is larger than the sum of its proper divisors (59487).

99105 is a wasteful number, since it uses less digits than its factorization.

99105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6615.

The product of its (nonzero) digits is 405, while the sum is 24.

The square root of 99105 is about 314.8094661855. The cubic root of 99105 is about 46.2769990885.

The spelling of 99105 in words is "ninety-nine thousand, one hundred five".