166147 has 2 divisors, whose sum is σ = 166148. Its totient is φ = 166146.

The previous prime is 166099. The next prime is 166151. The reversal of 166147 is 741661.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (741661) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 166147 - 2¹⁵ = 133379 is a prime.

It is a plaindrome in base 14.

It is a nialpdrome in base 6.

It is not a weakly prime, because it can be changed into another prime (166157) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83073 + 83074.

It is an arithmetic number, because the mean of its divisors is an integer number (83074).

2¹⁶⁶¹⁴⁷ is an apocalyptic number.

166147 is a deficient number, since it is larger than the sum of its proper divisors (1).

166147 is an equidigital number, since it uses as much as digits as its factorization.

166147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1008, while the sum is 25.

The square root of 166147 is about 407.6113344842. The cubic root of 166147 is about 54.9748645477.

It can be divided in two parts, 166 and 147, that added together give a palindrome (313).

The spelling of 166147 in words is "one hundred sixty-six thousand, one hundred forty-seven".