168319 has 4 divisors (see below), whose sum is σ = 169200. Its totient is φ = 167440.

The previous prime is 168293. The next prime is 168323. The reversal of 168319 is 913861.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 913861 = 13 ⋅70297.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-168319 is a prime.

It is a super-2 number, since 2×168319² = 56662571522, which contains 22 as substring.

It is a Duffinian number.

168319 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19 + ... + 580.

It is an arithmetic number, because the mean of its divisors is an integer number (42300).

2¹⁶⁸³¹⁹ is an apocalyptic number.

168319 is a deficient number, since it is larger than the sum of its proper divisors (881).

168319 is an equidigital number, since it uses as much as digits as its factorization.

168319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880.

The product of its digits is 1296, while the sum is 28.

The square root of 168319 is about 410.2669862419. The cubic root of 168319 is about 55.2133859226.

The spelling of 168319 in words is "one hundred sixty-eight thousand, three hundred nineteen".