166043 has 2 divisors, whose sum is σ = 166044. Its totient is φ = 166042.

The previous prime is 166031. The next prime is 166063. The reversal of 166043 is 340661.

It is an a-pointer prime, because the next prime (166063) can be obtained adding 166043 to its sum of digits (20).

It is a weak prime.

It is an emirp because it is prime and its reverse (340661) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 166043 - 2⁴ = 166027 is a prime.

It is a plaindrome in base 16.

It is not a weakly prime, because it can be changed into another prime (166013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83021 + 83022.

It is an arithmetic number, because the mean of its divisors is an integer number (83022).

2¹⁶⁶⁰⁴³ is an apocalyptic number.

166043 is a deficient number, since it is larger than the sum of its proper divisors (1).

166043 is an equidigital number, since it uses as much as digits as its factorization.

166043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 166043 is about 407.4837420070. The cubic root of 166043 is about 54.9633916166.

The spelling of 166043 in words is "one hundred sixty-six thousand, forty-three".