19049 has 4 divisors (see below), whose sum is σ = 19536. Its totient is φ = 18564.

The previous prime is 19037. The next prime is 19051. The reversal of 19049 is 94091.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94091 = 37 ⋅2543.

It is a cyclic number.

It is not a de Polignac number, because 19049 - 2⁸ = 18793 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11 and base 15.

It is not an unprimeable number, because it can be changed into a prime (19009) 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, 179 + ... + 264.

It is an arithmetic number, because the mean of its divisors is an integer number (4884).

2¹⁹⁰⁴⁹ is an apocalyptic number.

It is an amenable number.

19049 is a deficient number, since it is larger than the sum of its proper divisors (487).

19049 is an equidigital number, since it uses as much as digits as its factorization.

19049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 19049 is about 138.0181147531. The cubic root of 19049 is about 26.7069356874.

The spelling of 19049 in words is "nineteen thousand, forty-nine".