168361 has 4 divisors (see below), whose sum is σ = 173824. Its totient is φ = 162900.

The previous prime is 168353. The next prime is 168391. The reversal of 168361 is 163861.

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 168361 - 2³ = 168353 is a prime.

It is a Duffinian number.

168361 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (168331) 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, 2685 + ... + 2746.

It is an arithmetic number, because the mean of its divisors is an integer number (43456).

2¹⁶⁸³⁶¹ is an apocalyptic number.

168361 is the 184-th centered decagonal number.

It is an amenable number.

168361 is a deficient number, since it is larger than the sum of its proper divisors (5463).

168361 is an equidigital number, since it uses as much as digits as its factorization.

168361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5462.

The product of its digits is 864, while the sum is 25.

The square root of 168361 is about 410.3181692297. The cubic root of 168361 is about 55.2179779361.

It can be divided in two parts, 168 and 361, that added together give a square (529 = 23²).

The spelling of 168361 in words is "one hundred sixty-eight thousand, three hundred sixty-one".