19182000191 has 4 divisors (see below), whose sum is σ = 19424810400. Its totient is φ = 18939189984.

The previous prime is 19182000157. The next prime is 19182000193. The reversal of 19182000191 is 19100028191.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19100028191 = 1613 ⋅11841307.

It is a cyclic number.

It is not a de Polignac number, because 19182000191 - 2¹⁰ = 19181999167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19182000193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121404986 + ... + 121405143.

It is an arithmetic number, because the mean of its divisors is an integer number (4856202600).

Almost surely, 2^19182000191 is an apocalyptic number.

19182000191 is a deficient number, since it is larger than the sum of its proper divisors (242810209).

19182000191 is an equidigital number, since it uses as much as digits as its factorization.

19182000191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242810208.

The product of its (nonzero) digits is 1296, while the sum is 32.

The spelling of 19182000191 in words is "nineteen billion, one hundred eighty-two million, one hundred ninety-one", and thus it is an aban number.