814317197 has 2 divisors, whose sum is σ = 814317198. Its totient is φ = 814317196.

The previous prime is 814317173. The next prime is 814317239. The reversal of 814317197 is 791713418.

814317197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 638118121 + 176199076 = 25261^2 + 13274^2 .

It is a cyclic number.

It is not a de Polignac number, because 814317197 - 2¹⁴ = 814300813 is a prime.

It is a super-2 number, since 2×814317197² = 1326224994659873618, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (814317107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 407158598 + 407158599.

It is an arithmetic number, because the mean of its divisors is an integer number (407158599).

Almost surely, 2^814317197 is an apocalyptic number.

It is an amenable number.

814317197 is a deficient number, since it is larger than the sum of its proper divisors (1).

814317197 is an equidigital number, since it uses as much as digits as its factorization.

814317197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42336, while the sum is 41.

The square root of 814317197 is about 28536.2435684867. The cubic root of 814317197 is about 933.8229335867.

The spelling of 814317197 in words is "eight hundred fourteen million, three hundred seventeen thousand, one hundred ninety-seven".