319289 has 2 divisors, whose sum is σ = 319290. Its totient is φ = 319288.

The previous prime is 319279. The next prime is 319313. The reversal of 319289 is 982913.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 319225 + 64 = 565^2 + 8^2 .

It is a cyclic number.

It is not a de Polignac number, because 319289 - 2¹² = 315193 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (319259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159644 + 159645.

It is an arithmetic number, because the mean of its divisors is an integer number (159645).

2³¹⁹²⁸⁹ is an apocalyptic number.

It is an amenable number.

319289 is a deficient number, since it is larger than the sum of its proper divisors (1).

319289 is an equidigital number, since it uses as much as digits as its factorization.

319289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 32.

The square root of 319289 is about 565.0566343297. The cubic root of 319289 is about 68.3483422647.

The spelling of 319289 in words is "three hundred nineteen thousand, two hundred eighty-nine".