16109045 has 4 divisors (see below), whose sum is σ = 19330860. Its totient is φ = 12887232.

The previous prime is 16109033. The next prime is 16109059. The reversal of 16109045 is 54090161.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4866436 + 11242609 = 2206^2 + 3353^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16109045 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1610900 + ... + 1610909.

It is an arithmetic number, because the mean of its divisors is an integer number (4832715).

Almost surely, 2^16109045 is an apocalyptic number.

It is an amenable number.

16109045 is a deficient number, since it is larger than the sum of its proper divisors (3221815).

16109045 is an equidigital number, since it uses as much as digits as its factorization.

16109045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3221814.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 16109045 is about 4013.6074795625. The cubic root of 16109045 is about 252.5553647833. Note that the first 3 decimals are identical.

The spelling of 16109045 in words is "sixteen million, one hundred nine thousand, forty-five".