166125 has 16 divisors (see below), whose sum is σ = 277056. Its totient is φ = 88400.

The previous prime is 166099. The next prime is 166147. The reversal of 166125 is 521661.

It is a happy number.

166125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 166125 - 2¹³ = 157933 is a prime.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 166125.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154 + ... + 596.

It is an arithmetic number, because the mean of its divisors is an integer number (17316).

2¹⁶⁶¹²⁵ is an apocalyptic number.

166125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

166125 is a deficient number, since it is larger than the sum of its proper divisors (110931).

166125 is an equidigital number, since it uses as much as digits as its factorization.

166125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461 (or 451 counting only the distinct ones).

The product of its digits is 360, while the sum is 21.

The square root of 166125 is about 407.5843470989. The cubic root of 166125 is about 54.9724379809.

Adding to 166125 its reverse (521661), we get a palindrome (687786).

The spelling of 166125 in words is "one hundred sixty-six thousand, one hundred twenty-five".