168419 has 4 divisors (see below), whose sum is σ = 178344. Its totient is φ = 158496.

The previous prime is 168409. The next prime is 168433. The reversal of 168419 is 914861.

168419 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-168419 is a prime.

It is a super-2 number, since 2×168419² = 56729919122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 168391 and 168400.

It is not an unprimeable number, because it can be changed into a prime (168409) 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, 4937 + ... + 4970.

It is an arithmetic number, because the mean of its divisors is an integer number (44586).

2¹⁶⁸⁴¹⁹ is an apocalyptic number.

168419 is a deficient number, since it is larger than the sum of its proper divisors (9925).

168419 is an equidigital number, since it uses as much as digits as its factorization.

168419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9924.

The product of its digits is 1728, while the sum is 29.

The square root of 168419 is about 410.3888400042. The cubic root of 168419 is about 55.2243180327.

The spelling of 168419 in words is "one hundred sixty-eight thousand, four hundred nineteen".