99175 has 6 divisors (see below), whose sum is σ = 123008. Its totient is φ = 79320.

The previous prime is 99173. The next prime is 99181. The reversal of 99175 is 57199.

It is not a de Polignac number, because 99175 - 2¹ = 99173 is a prime.

It is a Duffinian number.

99175 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99173) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1959 + ... + 2008.

2⁹⁹¹⁷⁵ is an apocalyptic number.

99175 is a deficient number, since it is larger than the sum of its proper divisors (23833).

99175 is a wasteful number, since it uses less digits than its factorization.

99175 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3977 (or 3972 counting only the distinct ones).

The product of its digits is 2835, while the sum is 31.

The square root of 99175 is about 314.9206249200. The cubic root of 99175 is about 46.2878920053.

The spelling of 99175 in words is "ninety-nine thousand, one hundred seventy-five".