166941 has 14 divisors (see below), whose sum is σ = 251390. Its totient is φ = 110808.

The previous prime is 166931. The next prime is 166949. The reversal of 166941 is 149661.

It can be written as a sum of positive squares in only one way, i.e., 164025 + 2916 = 405^2 + 54^2 .

It is not a de Polignac number, because 166941 - 2⁵ = 166909 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

166941 is a lucky number.

It is a nialpdrome in base 3.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166949) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 615 + ... + 843.

2¹⁶⁶⁹⁴¹ is an apocalyptic number.

It is an amenable number.

166941 is a deficient number, since it is larger than the sum of its proper divisors (84449).

166941 is an frugal number, since it uses more digits than its factorization.

166941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247 (or 232 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 166941 is about 408.5841406614. The cubic root of 166941 is about 55.0622985537.

The spelling of 166941 in words is "one hundred sixty-six thousand, nine hundred forty-one".