190302005 has 16 divisors (see below), whose sum is σ = 244329600. Its totient is φ = 141860160.

The previous prime is 190301999. The next prime is 190302017. The reversal of 190302005 is 500203091.

It is not a de Polignac number, because 190302005 - 2⁶ = 190301941 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10625 + ... + 22214.

It is an arithmetic number, because the mean of its divisors is an integer number (15270600).

Almost surely, 2^190302005 is an apocalyptic number.

It is an amenable number.

190302005 is a deficient number, since it is larger than the sum of its proper divisors (54027595).

190302005 is a wasteful number, since it uses less digits than its factorization.

190302005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32924.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 190302005 is about 13794.9992750997. Note that the first 3 decimals coincide. The cubic root of 190302005 is about 575.1941423821.

Adding to 190302005 its sum of digits (20), we get a square (190302025 = 13795²).

Adding to 190302005 its reverse (500203091), we get a palindrome (690505096).

The spelling of 190302005 in words is "one hundred ninety million, three hundred two thousand, five".