16086109 has 4 divisors (see below), whose sum is σ = 17323516. Its totient is φ = 14848704.

The previous prime is 16086089. The next prime is 16086121. The reversal of 16086109 is 90168061.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90168061 = 41 ⋅2199221.

It can be written as a sum of positive squares in 2 ways, for example, as 6874884 + 9211225 = 2622^2 + 3035^2 .

It is not a de Polignac number, because 16086109 - 2¹⁵ = 16053341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16086139) 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, 618684 + ... + 618709.

It is an arithmetic number, because the mean of its divisors is an integer number (4330879).

Almost surely, 2^16086109 is an apocalyptic number.

It is an amenable number.

16086109 is a deficient number, since it is larger than the sum of its proper divisors (1237407).

16086109 is a wasteful number, since it uses less digits than its factorization.

16086109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1237406.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 16086109 is about 4010.7491818861. The cubic root of 16086109 is about 252.4354453801.

The spelling of 16086109 in words is "sixteen million, eighty-six thousand, one hundred nine".