190055 has 4 divisors (see below), whose sum is σ = 228072. Its totient is φ = 152040.

The previous prime is 190051. The next prime is 190063. The reversal of 190055 is 550091.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 550091 = 23 ⋅23917.

It is not a de Polignac number, because 190055 - 2² = 190051 is a prime.

It is a super-2 number, since 2×190055² = 72241806050, 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 (190051) 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 3 ways as a sum of consecutive naturals, for example, 19001 + ... + 19010.

It is an arithmetic number, because the mean of its divisors is an integer number (57018).

2¹⁹⁰⁰⁵⁵ is an apocalyptic number.

190055 is a deficient number, since it is larger than the sum of its proper divisors (38017).

190055 is an equidigital number, since it uses as much as digits as its factorization.

190055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38016.

The product of its (nonzero) digits is 225, while the sum is 20.

The square root of 190055 is about 435.9529791159. The cubic root of 190055 is about 57.4945174357.

The spelling of 190055 in words is "one hundred ninety thousand, fifty-five".