168369 has 4 divisors (see below), whose sum is σ = 224496. Its totient is φ = 112244.

The previous prime is 168353. The next prime is 168391. The reversal of 168369 is 963861.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 168369 - 2⁴ = 168353 is a prime.

It is a super-2 number, since 2×168369² = 56696240322, which contains 22 as substring.

It is a D-number.

168369 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (168269) 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, 28059 + ... + 28064.

It is an arithmetic number, because the mean of its divisors is an integer number (56124).

2¹⁶⁸³⁶⁹ is an apocalyptic number.

It is an amenable number.

168369 is a deficient number, since it is larger than the sum of its proper divisors (56127).

168369 is an equidigital number, since it uses as much as digits as its factorization.

168369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56126.

The product of its digits is 7776, while the sum is 33.

The square root of 168369 is about 410.3279176464. The cubic root of 168369 is about 55.2188525187.

It can be divided in two parts, 16 and 8369, that added together give a triangular number (8385 = T₁₂₉).

The spelling of 168369 in words is "one hundred sixty-eight thousand, three hundred sixty-nine".