16165223 has 4 divisors (see below), whose sum is σ = 16175328. Its totient is φ = 16155120.

The previous prime is 16165207. The next prime is 16165231. The reversal of 16165223 is 32256161.

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 is a cyclic number.

It is not a de Polignac number, because 16165223 - 2⁴ = 16165207 is a prime.

It is a super-2 number, since 2×16165223² = 522628869279458, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16165192 and 16165201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16165273) 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, 2063 + ... + 6048.

It is an arithmetic number, because the mean of its divisors is an integer number (4043832).

Almost surely, 2^16165223 is an apocalyptic number.

16165223 is a deficient number, since it is larger than the sum of its proper divisors (10105).

16165223 is an equidigital number, since it uses as much as digits as its factorization.

16165223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10104.

The product of its digits is 2160, while the sum is 26.

The square root of 16165223 is about 4020.5998308710. The cubic root of 16165223 is about 252.8486077869.

The spelling of 16165223 in words is "sixteen million, one hundred sixty-five thousand, two hundred twenty-three".