16485109 has 4 divisors (see below), whose sum is σ = 16835904. Its totient is φ = 16134316.

The previous prime is 16485107. The next prime is 16485113. The reversal of 16485109 is 90158461.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16485109 - 2¹ = 16485107 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 (16485107) 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, 175327 + ... + 175420.

It is an arithmetic number, because the mean of its divisors is an integer number (4208976).

Almost surely, 2^16485109 is an apocalyptic number.

It is an amenable number.

16485109 is a deficient number, since it is larger than the sum of its proper divisors (350795).

16485109 is an equidigital number, since it uses as much as digits as its factorization.

16485109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350794.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 16485109 is about 4060.1858331855. The cubic root of 16485109 is about 254.5055599157.

The spelling of 16485109 in words is "sixteen million, four hundred eighty-five thousand, one hundred nine".