109599 has 16 divisors (see below), whose sum is σ = 177408. Its totient is φ = 58752.

The previous prime is 109597. The next prime is 109609. The reversal of 109599 is 995901.

It is not a de Polignac number, because 109599 - 2¹ = 109597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109597) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204 + ... + 510.

It is an arithmetic number, because the mean of its divisors is an integer number (11088).

2¹⁰⁹⁵⁹⁹ is an apocalyptic number.

109599 is a deficient number, since it is larger than the sum of its proper divisors (67809).

109599 is a wasteful number, since it uses less digits than its factorization.

109599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334.

The product of its (nonzero) digits is 3645, while the sum is 33.

The square root of 109599 is about 331.0573968363. The cubic root of 109599 is about 47.8559046662.

The spelling of 109599 in words is "one hundred nine thousand, five hundred ninety-nine".