127166 has 16 divisors (see below), whose sum is σ = 211344. Its totient is φ = 57024.

The previous prime is 127163. The next prime is 127189. The reversal of 127166 is 661721.

127166 = T₂₅ + T₂₆ + ... + T₉₁.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1706 + ... + 1778.

It is an arithmetic number, because the mean of its divisors is an integer number (13209).

2¹²⁷¹⁶⁶ is an apocalyptic number.

127166 is a deficient number, since it is larger than the sum of its proper divisors (84178).

127166 is a wasteful number, since it uses less digits than its factorization.

127166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155.

The product of its digits is 504, while the sum is 23.

The square root of 127166 is about 356.6034211838. The cubic root of 127166 is about 50.2871477663.

Adding to 127166 its reverse (661721), we get a palindrome (788887).

The spelling of 127166 in words is "one hundred twenty-seven thousand, one hundred sixty-six".