169123 has 4 divisors (see below), whose sum is σ = 172368. Its totient is φ = 165880.

The previous prime is 169111. The next prime is 169129. The reversal of 169123 is 321961.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-169123 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

169123 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 169094 and 169103.

It is not an unprimeable number, because it can be changed into a prime (169129) 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, 1543 + ... + 1648.

It is an arithmetic number, because the mean of its divisors is an integer number (43092).

2¹⁶⁹¹²³ is an apocalyptic number.

169123 is a deficient number, since it is larger than the sum of its proper divisors (3245).

169123 is an equidigital number, since it uses as much as digits as its factorization.

169123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3244.

The product of its digits is 324, while the sum is 22.

The square root of 169123 is about 411.2456686702. The cubic root of 169123 is about 55.3011578880.

It can be divided in two parts, 169 and 123, that added together give a palindrome (292).

The spelling of 169123 in words is "one hundred sixty-nine thousand, one hundred twenty-three".