16030109 has 4 divisors (see below), whose sum is σ = 16038204. Its totient is φ = 16022016.

The previous prime is 16030097. The next prime is 16030111. The reversal of 16030109 is 90103061.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1612900 + 14417209 = 1270^2 + 3797^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16030109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16030169) 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, 1139 + ... + 5775.

It is an arithmetic number, because the mean of its divisors is an integer number (4009551).

Almost surely, 2^16030109 is an apocalyptic number.

It is an amenable number.

16030109 is a deficient number, since it is larger than the sum of its proper divisors (8095).

16030109 is an equidigital number, since it uses as much as digits as its factorization.

16030109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8094.

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 16030109 is about 4003.7618560549. The cubic root of 16030109 is about 252.1421732800.

The spelling of 16030109 in words is "sixteen million, thirty thousand, one hundred nine".