166925 has 12 divisors (see below), whose sum is σ = 226176. Its totient is φ = 121200.

The previous prime is 166919. The next prime is 166931. The reversal of 166925 is 529661.

It is an interprime number because it is at equal distance from previous prime (166919) and next prime (166931).

It is not a de Polignac number, because 166925 - 2⁴ = 166909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29 + ... + 578.

It is an arithmetic number, because the mean of its divisors is an integer number (18848).

2¹⁶⁶⁹²⁵ is an apocalyptic number.

It is an amenable number.

166925 is a deficient number, since it is larger than the sum of its proper divisors (59251).

166925 is a wasteful number, since it uses less digits than its factorization.

166925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628 (or 623 counting only the distinct ones).

The product of its digits is 3240, while the sum is 29.

The square root of 166925 is about 408.5645603818. The cubic root of 166925 is about 55.0605393994.

The spelling of 166925 in words is "one hundred sixty-six thousand, nine hundred twenty-five".