166126 has 4 divisors (see below), whose sum is σ = 249192. Its totient is φ = 83062.

The previous prime is 166099. The next prime is 166147. The reversal of 166126 is 621661.

166126 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 an emirpimes, since its reverse is a distinct semiprime: 621661 = 19 ⋅32719.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 166097 and 166106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41530 + ... + 41533.

It is an arithmetic number, because the mean of its divisors is an integer number (62298).

2¹⁶⁶¹²⁶ is an apocalyptic number.

166126 is a deficient number, since it is larger than the sum of its proper divisors (83066).

166126 is an equidigital number, since it uses as much as digits as its factorization.

166126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83065.

The product of its digits is 432, while the sum is 22.

The square root of 166126 is about 407.5855738370. The cubic root of 166126 is about 54.9725482840.

Adding to 166126 its reverse (621661), we get a palindrome (787787).

Subtracting 166126 from its reverse (621661), we obtain a triangular number (455535 = T₉₅₄).

It can be divided in two parts, 166 and 126, that added together give a palindrome (292).

The spelling of 166126 in words is "one hundred sixty-six thousand, one hundred twenty-six".