2019317 has 2 divisors, whose sum is σ = 2019318. Its totient is φ = 2019316.

The previous prime is 2019289. The next prime is 2019337. The reversal of 2019317 is 7139102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1234321 + 784996 = 1111^2 + 886^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2019317 is a prime.

It is a super-2 number, since 2×2019317² = 8155282292978, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2019292 and 2019301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2019337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1009658 + 1009659.

It is an arithmetic number, because the mean of its divisors is an integer number (1009659).

2^2019317 is an apocalyptic number.

It is an amenable number.

2019317 is a deficient number, since it is larger than the sum of its proper divisors (1).

2019317 is an equidigital number, since it uses as much as digits as its factorization.

2019317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 2019317 is about 1421.0267414796. The cubic root of 2019317 is about 126.3964376032.

The spelling of 2019317 in words is "two million, nineteen thousand, three hundred seventeen".