319117 has 2 divisors, whose sum is σ = 319118. Its totient is φ = 319116.

The previous prime is 319097. The next prime is 319127. The reversal of 319117 is 711913.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 181476 + 137641 = 426^2 + 371^2 .

It is an emirp because it is prime and its reverse (711913) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-319117 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a nialpdrome in base 14.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (319127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159558 + 159559.

It is an arithmetic number, because the mean of its divisors is an integer number (159559).

2³¹⁹¹¹⁷ is an apocalyptic number.

It is an amenable number.

319117 is a deficient number, since it is larger than the sum of its proper divisors (1).

319117 is an equidigital number, since it uses as much as digits as its factorization.

319117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 189, while the sum is 22.

The square root of 319117 is about 564.9044166937. The cubic root of 319117 is about 68.3360670464.

The spelling of 319117 in words is "three hundred nineteen thousand, one hundred seventeen".