166235 has 4 divisors (see below), whose sum is σ = 199488. Its totient is φ = 132984.

The previous prime is 166219. The next prime is 166237. The reversal of 166235 is 532661.

Added to its reverse (532661) it gives a square (698896 = 836²).

166235 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: 532661 = 17 ⋅31333.

It is a cyclic number.

It is not a de Polignac number, because 166235 - 2⁴ = 166219 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 166235.

It is not an unprimeable number, because it can be changed into a prime (166237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16619 + ... + 16628.

It is an arithmetic number, because the mean of its divisors is an integer number (49872).

2¹⁶⁶²³⁵ is an apocalyptic number.

166235 is a deficient number, since it is larger than the sum of its proper divisors (33253).

166235 is an equidigital number, since it uses as much as digits as its factorization.

166235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33252.

The product of its digits is 1080, while the sum is 23.

The square root of 166235 is about 407.7192661624. The cubic root of 166235 is about 54.9845686736.

Adding to 166235 its reverse (532661), we get a palindrome (698896).

The spelling of 166235 in words is "one hundred sixty-six thousand, two hundred thirty-five".