19144 has 8 divisors (see below), whose sum is σ = 35910. Its totient is φ = 9568.

The previous prime is 19141. The next prime is 19157. The reversal of 19144 is 44191.

It can be written as a sum of positive squares in only one way, i.e., 19044 + 100 = 138^2 + 10^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (19) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (19141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1189 + ... + 1204.

2¹⁹¹⁴⁴ is an apocalyptic number.

It is an amenable number.

19144 is a deficient number, since it is larger than the sum of its proper divisors (16766).

19144 is a wasteful number, since it uses less digits than its factorization.

19144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2399 (or 2395 counting only the distinct ones).

The product of its digits is 144, while the sum is 19.

The square root of 19144 is about 138.3618444514. The cubic root of 19144 is about 26.7512591482.

The spelling of 19144 in words is "nineteen thousand, one hundred forty-four".