319849459 has 2 divisors, whose sum is σ = 319849460. Its totient is φ = 319849458.

The previous prime is 319849457. The next prime is 319849489. The reversal of 319849459 is 954948913.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 319849459 - 2¹ = 319849457 is a prime.

Together with 319849457, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (319849451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159924729 + 159924730.

It is an arithmetic number, because the mean of its divisors is an integer number (159924730).

Almost surely, 2^319849459 is an apocalyptic number.

319849459 is a deficient number, since it is larger than the sum of its proper divisors (1).

319849459 is an equidigital number, since it uses as much as digits as its factorization.

319849459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1399680, while the sum is 52.

The square root of 319849459 is about 17884.3355761404. The cubic root of 319849459 is about 683.8831028929.

The spelling of 319849459 in words is "three hundred nineteen million, eight hundred forty-nine thousand, four hundred fifty-nine".