168356 has 6 divisors (see below), whose sum is σ = 294630. Its totient is φ = 84176.

The previous prime is 168353. The next prime is 168391. The reversal of 168356 is 653861.

168356 is nontrivially palindromic in base 12.

It can be written as a sum of positive squares in only one way, i.e., 168100 + 256 = 410^2 + 16^2 .

It is not an unprimeable number, because it can be changed into a prime (168353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21041 + ... + 21048.

It is an arithmetic number, because the mean of its divisors is an integer number (49105).

2¹⁶⁸³⁵⁶ is an apocalyptic number.

It is an amenable number.

168356 is a deficient number, since it is larger than the sum of its proper divisors (126274).

168356 is a wasteful number, since it uses less digits than its factorization.

168356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42093 (or 42091 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

The square root of 168356 is about 410.3120763516. The cubic root of 168356 is about 55.2174313079.

The spelling of 168356 in words is "one hundred sixty-eight thousand, three hundred fifty-six".