19047 has 8 divisors (see below), whose sum is σ = 29056. Its totient is φ = 10872.

The previous prime is 19037. The next prime is 19051. The reversal of 19047 is 74091.

19047 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 19047 - 2⁴ = 19031 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 907 = 19047 / (1 + 9 + 0 + 4 + 7).

It is a Duffinian number.

It is a plaindrome in base 11 and base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 433 + ... + 474.

It is an arithmetic number, because the mean of its divisors is an integer number (3632).

2¹⁹⁰⁴⁷ is an apocalyptic number.

19047 is a deficient number, since it is larger than the sum of its proper divisors (10009).

19047 is an equidigital number, since it uses as much as digits as its factorization.

19047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 19047 is about 138.0108691372. The cubic root of 19047 is about 26.7060009797.

The spelling of 19047 in words is "nineteen thousand, forty-seven".