166253 has 6 divisors (see below), whose sum is σ = 172782. Its totient is φ = 159960.

The previous prime is 166247. The next prime is 166259. The reversal of 166253 is 352661.

166253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (166247) and next prime (166259).

It can be written as a sum of positive squares in only one way, i.e., 162409 + 3844 = 403^2 + 62^2 .

It is not a de Polignac number, because 166253 - 2⁴ = 166237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166259) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 875 + ... + 1047.

It is an arithmetic number, because the mean of its divisors is an integer number (28797).

2¹⁶⁶²⁵³ is an apocalyptic number.

It is an amenable number.

166253 is a deficient number, since it is larger than the sum of its proper divisors (6529).

166253 is an equidigital number, since it uses as much as digits as its factorization.

166253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235 (or 204 counting only the distinct ones).

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

The square root of 166253 is about 407.7413395769. The cubic root of 166253 is about 54.9865531865.

The spelling of 166253 in words is "one hundred sixty-six thousand, two hundred fifty-three".