194519085 has 32 divisors (see below), whose sum is σ = 316994688. Its totient is φ = 101836800.

The previous prime is 194519077. The next prime is 194519089. The reversal of 194519085 is 580915491.

It is not a de Polignac number, because 194519085 - 2³ = 194519077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194519089) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 438874 + ... + 439316.

It is an arithmetic number, because the mean of its divisors is an integer number (9906084).

Almost surely, 2^194519085 is an apocalyptic number.

194519085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

194519085 is a deficient number, since it is larger than the sum of its proper divisors (122475603).

194519085 is a wasteful number, since it uses less digits than its factorization.

194519085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925.

The product of its (nonzero) digits is 64800, while the sum is 42.

The square root of 194519085 is about 13947.0098945975. The cubic root of 194519085 is about 579.4118939674.

The spelling of 194519085 in words is "one hundred ninety-four million, five hundred nineteen thousand, eighty-five".