188485 has 16 divisors (see below), whose sum is σ = 259200. Its totient is φ = 130240.

The previous prime is 188483. The next prime is 188491. The reversal of 188485 is 584881.

It is not a de Polignac number, because 188485 - 2¹ = 188483 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 188485.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188483) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1191 + ... + 1339.

It is an arithmetic number, because the mean of its divisors is an integer number (16200).

2¹⁸⁸⁴⁸⁵ is an apocalyptic number.

It is an amenable number.

188485 is a deficient number, since it is larger than the sum of its proper divisors (70715).

188485 is a wasteful number, since it uses less digits than its factorization.

188485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188.

The product of its digits is 10240, while the sum is 34.

The square root of 188485 is about 434.1485920742. The cubic root of 188485 is about 57.3357632225.

The spelling of 188485 in words is "one hundred eighty-eight thousand, four hundred eighty-five".