319807049 has 2 divisors, whose sum is σ = 319807050. Its totient is φ = 319807048.

The previous prime is 319807027. The next prime is 319807091. The reversal of 319807049 is 940708913.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 254083600 + 65723449 = 15940^2 + 8107^2 .

It is a cyclic number.

It is not a de Polignac number, because 319807049 - 2⁸ = 319806793 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 319806997 and 319807015.

It is not a weakly prime, because it can be changed into another prime (319807849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159903524 + 159903525.

It is an arithmetic number, because the mean of its divisors is an integer number (159903525).

Almost surely, 2^319807049 is an apocalyptic number.

It is an amenable number.

319807049 is a deficient number, since it is larger than the sum of its proper divisors (1).

319807049 is an equidigital number, since it uses as much as digits as its factorization.

319807049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 319807049 is about 17883.1498623704. The cubic root of 319807049 is about 683.8528753764.

The spelling of 319807049 in words is "three hundred nineteen million, eight hundred seven thousand, forty-nine".