16223105 has 4 divisors (see below), whose sum is σ = 19467732. Its totient is φ = 12978480.

The previous prime is 16223101. The next prime is 16223111. The reversal of 16223105 is 50132261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50132261 = 109 ⋅459929.

It can be written as a sum of positive squares in 2 ways, for example, as 11343424 + 4879681 = 3368^2 + 2209^2 .

It is not a de Polignac number, because 16223105 - 2² = 16223101 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16223101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1622306 + ... + 1622315.

It is an arithmetic number, because the mean of its divisors is an integer number (4866933).

Almost surely, 2^16223105 is an apocalyptic number.

It is an amenable number.

16223105 is a deficient number, since it is larger than the sum of its proper divisors (3244627).

16223105 is an equidigital number, since it uses as much as digits as its factorization.

16223105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3244626.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 16223105 is about 4027.7915785204. The cubic root of 16223105 is about 253.1500357293.

Adding to 16223105 its reverse (50132261), we get a palindrome (66355366).

The spelling of 16223105 in words is "sixteen million, two hundred twenty-three thousand, one hundred five".