19289 has 2 divisors, whose sum is σ = 19290. Its totient is φ = 19288.

The previous prime is 19273. The next prime is 19301. The reversal of 19289 is 98291.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17689 + 1600 = 133^2 + 40^2 .

It is a cyclic number.

It is not a de Polignac number, because 19289 - 2⁴ = 19273 is a prime.

It is a Chen prime.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (19219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9644 + 9645.

It is an arithmetic number, because the mean of its divisors is an integer number (9645).

2¹⁹²⁸⁹ is an apocalyptic number.

It is an amenable number.

19289 is a deficient number, since it is larger than the sum of its proper divisors (1).

19289 is an equidigital number, since it uses as much as digits as its factorization.

19289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 29.

The square root of 19289 is about 138.8848443856. The cubic root of 19289 is about 26.8186289132.

The spelling of 19289 in words is "nineteen thousand, two hundred eighty-nine".