190005 has 16 divisors (see below), whose sum is σ = 311040. Its totient is φ = 99008.

The previous prime is 189997. The next prime is 190027. The reversal of 190005 is 500091.

It is a cyclic number.

It is not a de Polignac number, because 190005 - 2³ = 189997 is a prime.

It is a super-2 number, since 2×190005² = 72203800050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 676 + ... + 914.

It is an arithmetic number, because the mean of its divisors is an integer number (19440).

2¹⁹⁰⁰⁰⁵ is an apocalyptic number.

190005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

190005 is a deficient number, since it is larger than the sum of its proper divisors (121035).

190005 is a wasteful number, since it uses less digits than its factorization.

190005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300.

The product of its (nonzero) digits is 45, while the sum is 15.

The square root of 190005 is about 435.8956297097. The cubic root of 190005 is about 57.4894750742.

Adding to 190005 its reverse (500091), we get a palindrome (690096).

The spelling of 190005 in words is "one hundred ninety thousand, five".