190490585 has 4 divisors (see below), whose sum is σ = 228588708. Its totient is φ = 152392464.

The previous prime is 190490579. The next prime is 190490609. The reversal of 190490585 is 585094091.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 585094091 = 59 ⋅9916849.

It can be written as a sum of positive squares in 2 ways, for example, as 141895744 + 48594841 = 11912^2 + 6971^2 .

It is a cyclic number.

It is not a de Polignac number, because 190490585 - 2⁸ = 190490329 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19049054 + ... + 19049063.

It is an arithmetic number, because the mean of its divisors is an integer number (57147177).

Almost surely, 2^190490585 is an apocalyptic number.

It is an amenable number.

190490585 is a deficient number, since it is larger than the sum of its proper divisors (38098123).

190490585 is an equidigital number, since it uses as much as digits as its factorization.

190490585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38098122.

The product of its (nonzero) digits is 64800, while the sum is 41.

The square root of 190490585 is about 13801.8326681640. The cubic root of 190490585 is about 575.3840760992.

The spelling of 190490585 in words is "one hundred ninety million, four hundred ninety thousand, five hundred eighty-five".