319869089 has 2 divisors, whose sum is σ = 319869090. Its totient is φ = 319869088.

The previous prime is 319869071. The next prime is 319869091. The reversal of 319869089 is 980968913.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 166926400 + 152942689 = 12920^2 + 12367^2 .

It is a cyclic number.

It is not a de Polignac number, because 319869089 - 2¹⁶ = 319803553 is a prime.

It is a Sophie Germain prime.

Together with 319869091, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 319869089.

It is not a weakly prime, because it can be changed into another prime (319869019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159934544 + 159934545.

It is an arithmetic number, because the mean of its divisors is an integer number (159934545).

Almost surely, 2^319869089 is an apocalyptic number.

It is an amenable number.

319869089 is a deficient number, since it is larger than the sum of its proper divisors (1).

319869089 is an equidigital number, since it uses as much as digits as its factorization.

319869089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 839808, while the sum is 53.

The square root of 319869089 is about 17884.8843720053. The cubic root of 319869089 is about 683.8970931731.

The spelling of 319869089 in words is "three hundred nineteen million, eight hundred sixty-nine thousand, eighty-nine".