190500017 has 4 divisors (see below), whose sum is σ = 190528500. Its totient is φ = 190471536.

The previous prime is 190500001. The next prime is 190500031. The reversal of 190500017 is 710005091.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 13184161 + 177315856 = 3631^2 + 13316^2 .

It is a cyclic number.

It is not a de Polignac number, because 190500017 - 2⁴ = 190500001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 190499965 and 190500001.

It is not an unprimeable number, because it can be changed into a prime (190500067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1859 + ... + 19607.

It is an arithmetic number, because the mean of its divisors is an integer number (47632125).

Almost surely, 2^190500017 is an apocalyptic number.

It is an amenable number.

190500017 is a deficient number, since it is larger than the sum of its proper divisors (28483).

190500017 is a wasteful number, since it uses less digits than its factorization.

190500017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28482.

The product of its (nonzero) digits is 315, while the sum is 23.

The square root of 190500017 is about 13802.1743576873. The cubic root of 190500017 is about 575.3935725144.

The spelling of 190500017 in words is "one hundred ninety million, five hundred thousand, seventeen".