319918097 has 2 divisors, whose sum is σ = 319918098. Its totient is φ = 319918096.

The previous prime is 319918061. The next prime is 319918129. The reversal of 319918097 is 790819913.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 302620816 + 17297281 = 17396^2 + 4159^2 .

It is a cyclic number.

It is not a de Polignac number, because 319918097 - 2⁸ = 319917841 is a prime.

It is not a weakly prime, because it can be changed into another prime (319918037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159959048 + 159959049.

It is an arithmetic number, because the mean of its divisors is an integer number (159959049).

Almost surely, 2^319918097 is an apocalyptic number.

It is an amenable number.

319918097 is a deficient number, since it is larger than the sum of its proper divisors (1).

319918097 is an equidigital number, since it uses as much as digits as its factorization.

319918097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 122472, while the sum is 47.

The square root of 319918097 is about 17886.2544150529. The cubic root of 319918097 is about 683.9320186247.

The spelling of 319918097 in words is "three hundred nineteen million, nine hundred eighteen thousand, ninety-seven".