19005085 has 8 divisors (see below), whose sum is σ = 24879456. Its totient is φ = 13821840.

The previous prime is 19005083. The next prime is 19005127. The reversal of 19005085 is 58050091.

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

It is not a de Polignac number, because 19005085 - 2¹ = 19005083 is a prime.

It is a super-2 number, since 2×19005085² = 722386511714450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19005083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172719 + ... + 172828.

It is an arithmetic number, because the mean of its divisors is an integer number (3109932).

Almost surely, 2^19005085 is an apocalyptic number.

It is an amenable number.

19005085 is a deficient number, since it is larger than the sum of its proper divisors (5874371).

19005085 is a wasteful number, since it uses less digits than its factorization.

19005085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345563.

The product of its (nonzero) digits is 1800, while the sum is 28.

The square root of 19005085 is about 4359.4821940226. The cubic root of 19005085 is about 266.8639677004.

The spelling of 19005085 in words is "nineteen million, five thousand, eighty-five".