13165223 has 12 divisors (see below), whose sum is σ = 14121408. Its totient is φ = 12265440.

The previous prime is 13165213. The next prime is 13165241. The reversal of 13165223 is 32256131.

13165223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13165223 - 2¹⁶ = 13099687 is a prime.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13165213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21386 + ... + 21992.

It is an arithmetic number, because the mean of its divisors is an integer number (1176784).

Almost surely, 2^13165223 is an apocalyptic number.

13165223 is a deficient number, since it is larger than the sum of its proper divisors (956185).

13165223 is an equidigital number, since it uses as much as digits as its factorization.

13165223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694 (or 671 counting only the distinct ones).

The product of its digits is 1080, while the sum is 23.

The square root of 13165223 is about 3628.3912413079. The cubic root of 13165223 is about 236.1254181114.

The spelling of 13165223 in words is "thirteen million, one hundred sixty-five thousand, two hundred twenty-three".