19043 has 4 divisors (see below), whose sum is σ = 19320. Its totient is φ = 18768.

The previous prime is 19037. The next prime is 19051. The reversal of 19043 is 34091.

It is a Cunningham number, because it is equal to 138²-1.

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, and also an emirpimes, since its reverse is a distinct semiprime: 34091 = 73 ⋅467.

It is a cyclic number.

It is not a de Polignac number, because 19043 - 2⁶ = 18979 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (19013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68 + ... + 206.

It is an arithmetic number, because the mean of its divisors is an integer number (4830).

2¹⁹⁰⁴³ is an apocalyptic number.

19043 is a deficient number, since it is larger than the sum of its proper divisors (277).

19043 is a wasteful number, since it uses less digits than its factorization.

19043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 19043 is about 137.9963767640. The cubic root of 19043 is about 26.7041313680.

The spelling of 19043 in words is "nineteen thousand, forty-three".