99113 has 4 divisors (see below), whose sum is σ = 113280. Its totient is φ = 84948.

The previous prime is 99109. The next prime is 99119. The reversal of 99113 is 31199.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31199 = 7 ⋅4457.

It is a cyclic number.

It is not a de Polignac number, because 99113 - 2² = 99109 is a prime.

It is a Duffinian number.

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

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7073 + ... + 7086.

It is an arithmetic number, because the mean of its divisors is an integer number (28320).

2⁹⁹¹¹³ is an apocalyptic number.

It is an amenable number.

99113 is a deficient number, since it is larger than the sum of its proper divisors (14167).

99113 is a wasteful number, since it uses less digits than its factorization.

99113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14166.

The product of its digits is 243, while the sum is 23.

The square root of 99113 is about 314.8221720273. The cubic root of 99113 is about 46.2782442529.

It can be divided in two parts, 99 and 113, that added together give a palindrome (212).

The spelling of 99113 in words is "ninety-nine thousand, one hundred thirteen".