166343 has 4 divisors (see below), whose sum is σ = 167160. Its totient is φ = 165528.

The previous prime is 166319. The next prime is 166349. The reversal of 166343 is 343661.

166343 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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166343 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14 and base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166349) 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, 188 + ... + 606.

It is an arithmetic number, because the mean of its divisors is an integer number (41790).

2¹⁶⁶³⁴³ is an apocalyptic number.

166343 is a deficient number, since it is larger than the sum of its proper divisors (817).

166343 is an equidigital number, since it uses as much as digits as its factorization.

166343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816.

The product of its digits is 1296, while the sum is 23.

The square root of 166343 is about 407.8516887301. The cubic root of 166343 is about 54.9964736031.

The spelling of 166343 in words is "one hundred sixty-six thousand, three hundred forty-three".