168144323 has 4 divisors (see below), whose sum is σ = 168177408. Its totient is φ = 168111240.

The previous prime is 168144299. The next prime is 168144337. The reversal of 168144323 is 323441861.

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

It is a cyclic number.

It is not a de Polignac number, because 168144323 - 2²² = 163950019 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 168144323.

It is not an unprimeable number, because it can be changed into a prime (168144343) 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, 7136 + ... + 19677.

It is an arithmetic number, because the mean of its divisors is an integer number (42044352).

Almost surely, 2^168144323 is an apocalyptic number.

168144323 is a deficient number, since it is larger than the sum of its proper divisors (33085).

168144323 is an equidigital number, since it uses as much as digits as its factorization.

168144323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33084.

The product of its digits is 13824, while the sum is 32.

The square root of 168144323 is about 12967.0475822371. The cubic root of 168144323 is about 551.9427964859.

The spelling of 168144323 in words is "one hundred sixty-eight million, one hundred forty-four thousand, three hundred twenty-three".