109365 has 16 divisors (see below), whose sum is σ = 183168. Its totient is φ = 55616.

The previous prime is 109363. The next prime is 109367. The reversal of 109365 is 563901.

109365 = T₄₆ + T₄₇ + ... + T₉₀.

It is an interprime number because it is at equal distance from previous prime (109363) and next prime (109367).

It is a cyclic number.

It is not a de Polignac number, because 109365 - 2¹ = 109363 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 109365.

It is not an unprimeable number, because it can be changed into a prime (109363) 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, 187 + ... + 503.

It is an arithmetic number, because the mean of its divisors is an integer number (11448).

2¹⁰⁹³⁶⁵ is an apocalyptic number.

109365 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

109365 is a deficient number, since it is larger than the sum of its proper divisors (73803).

109365 is a wasteful number, since it uses less digits than its factorization.

109365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348.

The product of its (nonzero) digits is 810, while the sum is 24.

The square root of 109365 is about 330.7037949586. The cubic root of 109365 is about 47.8218220535.

It can be divided in two parts, 109 and 365, that added together give a palindrome (474).

The spelling of 109365 in words is "one hundred nine thousand, three hundred sixty-five".