75099 has 4 divisors (see below), whose sum is σ = 100136. Its totient is φ = 50064.

The previous prime is 75083. The next prime is 75109. The reversal of 75099 is 99057.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 75099 - 2⁴ = 75083 is a prime.

It is a D-number.

It is a Duffinian number.

75099 is a lucky number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (75029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12514 + ... + 12519.

It is an arithmetic number, because the mean of its divisors is an integer number (25034).

2⁷⁵⁰⁹⁹ is an apocalyptic number.

75099 is a deficient number, since it is larger than the sum of its proper divisors (25037).

75099 is a wasteful number, since it uses less digits than its factorization.

75099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25036.

The product of its (nonzero) digits is 2835, while the sum is 30.

The square root of 75099 is about 274.0419675889. The cubic root of 75099 is about 42.1901806253.

The spelling of 75099 in words is "seventy-five thousand, ninety-nine".