319713193 has 2 divisors, whose sum is σ = 319713194. Its totient is φ = 319713192.

The previous prime is 319713167. The next prime is 319713217. The reversal of 319713193 is 391317913.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 180284329 + 139428864 = 13427^2 + 11808^2 .

It is a cyclic number.

It is not a de Polignac number, because 319713193 - 2²¹ = 317616041 is a prime.

It is not a weakly prime, because it can be changed into another prime (319713113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159856596 + 159856597.

It is an arithmetic number, because the mean of its divisors is an integer number (159856597).

Almost surely, 2^319713193 is an apocalyptic number.

It is an amenable number.

319713193 is a deficient number, since it is larger than the sum of its proper divisors (1).

319713193 is an equidigital number, since it uses as much as digits as its factorization.

319713193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15309, while the sum is 37.

The square root of 319713193 is about 17880.5255235969. The cubic root of 319713193 is about 683.7859704770.

The spelling of 319713193 in words is "three hundred nineteen million, seven hundred thirteen thousand, one hundred ninety-three".