10505317 has 2 divisors, whose sum is σ = 10505318. Its totient is φ = 10505316.

The previous prime is 10505291. The next prime is 10505351. The reversal of 10505317 is 71350501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8099716 + 2405601 = 2846^2 + 1551^2 .

It is an emirp because it is prime and its reverse (71350501) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10505317 is a prime.

It is a super-2 number, since 2×10505317² = 220723370540978, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10505377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5252658 + 5252659.

It is an arithmetic number, because the mean of its divisors is an integer number (5252659).

Almost surely, 2^10505317 is an apocalyptic number.

It is an amenable number.

10505317 is a deficient number, since it is larger than the sum of its proper divisors (1).

10505317 is an equidigital number, since it uses as much as digits as its factorization.

10505317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 525, while the sum is 22.

The square root of 10505317 is about 3241.1906762793. The cubic root of 10505317 is about 219.0129125085.

Adding to 10505317 its reverse (71350501), we get a palindrome (81855818).

The spelling of 10505317 in words is "ten million, five hundred five thousand, three hundred seventeen".