169223423 has 4 divisors (see below), whose sum is σ = 179177760. Its totient is φ = 159269088.

The previous prime is 169223413. The next prime is 169223429. The reversal of 169223423 is 324322961.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324322961 = 31 ⋅10462031.

It is a cyclic number.

It is not a de Polignac number, because 169223423 - 2¹⁰ = 169222399 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 169223423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169223429) 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, 4977143 + ... + 4977176.

It is an arithmetic number, because the mean of its divisors is an integer number (44794440).

Almost surely, 2^169223423 is an apocalyptic number.

169223423 is a deficient number, since it is larger than the sum of its proper divisors (9954337).

169223423 is an equidigital number, since it uses as much as digits as its factorization.

169223423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9954336.

The product of its digits is 15552, while the sum is 32.

The square root of 169223423 is about 13008.5903540699. The cubic root of 169223423 is about 553.1210142094.

The spelling of 169223423 in words is "one hundred sixty-nine million, two hundred twenty-three thousand, four hundred twenty-three".