188164 has 6 divisors (see below), whose sum is σ = 329294. Its totient is φ = 94080.

The previous prime is 188159. The next prime is 188171. The reversal of 188164 is 461881.

188164 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 129600 + 58564 = 360^2 + 242^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23517 + ... + 23524.

2¹⁸⁸¹⁶⁴ is an apocalyptic number.

It is an amenable number.

188164 is a deficient number, since it is larger than the sum of its proper divisors (141130).

188164 is a wasteful number, since it uses less digits than its factorization.

188164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47045 (or 47043 counting only the distinct ones).

The product of its digits is 1536, while the sum is 28.

The square root of 188164 is about 433.7787454452. The cubic root of 188164 is about 57.3031961076.

The spelling of 188164 in words is "one hundred eighty-eight thousand, one hundred sixty-four".