190685 has 8 divisors (see below), whose sum is σ = 249696. Its totient is φ = 138640.

The previous prime is 190669. The next prime is 190699. The reversal of 190685 is 586091.

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

It is not a de Polignac number, because 190685 - 2⁴ = 190669 is a prime.

It is a Duffinian number.

It is a Curzon number.

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, 1679 + ... + 1788.

It is an arithmetic number, because the mean of its divisors is an integer number (31212).

2¹⁹⁰⁶⁸⁵ is an apocalyptic number.

It is an amenable number.

190685 is a deficient number, since it is larger than the sum of its proper divisors (59011).

190685 is a wasteful number, since it uses less digits than its factorization.

190685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3483.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 190685 is about 436.6749363085. The cubic root of 190685 is about 57.5579755518.

It can be divided in two parts, 1906 and 85, that added together give a palindrome (1991).

The spelling of 190685 in words is "one hundred ninety thousand, six hundred eighty-five".