116109 has 24 divisors (see below), whose sum is σ = 203840. Its totient is φ = 62208.

The previous prime is 116107. The next prime is 116113. The reversal of 116109 is 901611.

It is not a de Polignac number, because 116109 - 2¹ = 116107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 116091 and 116100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1149 + ... + 1245.

2¹¹⁶¹⁰⁹ is an apocalyptic number.

116109 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

116109 is a deficient number, since it is larger than the sum of its proper divisors (87731).

116109 is a wasteful number, since it uses less digits than its factorization.

116109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129 (or 126 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

The square root of 116109 is about 340.7477072557. The cubic root of 116109 is about 48.7852604863.

It can be divided in two parts, 116 and 109, that added together give a square (225 = 15²).

The spelling of 116109 in words is "one hundred sixteen thousand, one hundred nine".