16271317 has 2 divisors, whose sum is σ = 16271318. Its totient is φ = 16271316.

The previous prime is 16271309. The next prime is 16271347. The reversal of 16271317 is 71317261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12327121 + 3944196 = 3511^2 + 1986^2 .

It is a cyclic number.

It is not a de Polignac number, because 16271317 - 2³ = 16271309 is a prime.

It is a Chen prime.

It is a plaindrome in base 14.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16271347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8135658 + 8135659.

It is an arithmetic number, because the mean of its divisors is an integer number (8135659).

Almost surely, 2^16271317 is an apocalyptic number.

It is an amenable number.

16271317 is a deficient number, since it is larger than the sum of its proper divisors (1).

16271317 is an equidigital number, since it uses as much as digits as its factorization.

16271317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1764, while the sum is 28.

The square root of 16271317 is about 4033.7720560289. The cubic root of 16271317 is about 253.4005590674.

Adding to 16271317 its reverse (71317261), we get a palindrome (87588578).

The spelling of 16271317 in words is "sixteen million, two hundred seventy-one thousand, three hundred seventeen".