319249079 has 2 divisors, whose sum is σ = 319249080. Its totient is φ = 319249078.

The previous prime is 319249043. The next prime is 319249087. The reversal of 319249079 is 970942913.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-319249079 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (319249009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159624539 + 159624540.

It is an arithmetic number, because the mean of its divisors is an integer number (159624540).

Almost surely, 2^319249079 is an apocalyptic number.

319249079 is a deficient number, since it is larger than the sum of its proper divisors (1).

319249079 is an equidigital number, since it uses as much as digits as its factorization.

319249079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 122472, while the sum is 44.

The square root of 319249079 is about 17867.5426122341. The cubic root of 319249079 is about 683.4549359371.

The spelling of 319249079 in words is "three hundred nineteen million, two hundred forty-nine thousand, seventy-nine".