16243105 has 4 divisors (see below), whose sum is σ = 19491732. Its totient is φ = 12994480.

The previous prime is 16243099. The next prime is 16243133. The reversal of 16243105 is 50134261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50134261 = 787 ⋅63703.

It can be written as a sum of positive squares in 2 ways, for example, as 11350161 + 4892944 = 3369^2 + 2212^2 .

It is not a de Polignac number, because 16243105 - 2¹⁹ = 15718817 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1624306 + ... + 1624315.

It is an arithmetic number, because the mean of its divisors is an integer number (4872933).

Almost surely, 2^16243105 is an apocalyptic number.

It is an amenable number.

16243105 is a deficient number, since it is larger than the sum of its proper divisors (3248627).

16243105 is an equidigital number, since it uses as much as digits as its factorization.

16243105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3248626.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 16243105 is about 4030.2735639160. The cubic root of 16243105 is about 253.2540216096.

Adding to 16243105 its reverse (50134261), we get a palindrome (66377366).

The spelling of 16243105 in words is "sixteen million, two hundred forty-three thousand, one hundred five".