192985 has 8 divisors (see below), whose sum is σ = 249480. Its totient is φ = 142464.

The previous prime is 192979. The next prime is 192991. The reversal of 192985 is 589291.

It is an interprime number because it is at equal distance from previous prime (192979) and next prime (192991).

It can be written as a sum of positive squares in 4 ways, for example, as 9801 + 183184 = 99^2 + 428^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 192985 - 2³ = 192977 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 192985.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1420 + ... + 1549.

It is an arithmetic number, because the mean of its divisors is an integer number (31185).

2¹⁹²⁹⁸⁵ is an apocalyptic number.

It is an amenable number.

192985 is a deficient number, since it is larger than the sum of its proper divisors (56495).

192985 is a wasteful number, since it uses less digits than its factorization.

192985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2987.

The product of its digits is 6480, while the sum is 34.

The square root of 192985 is about 439.3005804685. The cubic root of 192985 is about 57.7884684634.

The spelling of 192985 in words is "one hundred ninety-two thousand, nine hundred eighty-five".