16317193 has 2 divisors, whose sum is σ = 16317194. Its totient is φ = 16317192.

The previous prime is 16317151. The next prime is 16317209. The reversal of 16317193 is 39171361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15657849 + 659344 = 3957^2 + 812^2 .

It is an emirp because it is prime and its reverse (39171361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16317193 - 2⁹ = 16316681 is a prime.

It is a super-3 number, since 3×16317193³ (a number of 23 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (16317293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8158596 + 8158597.

It is an arithmetic number, because the mean of its divisors is an integer number (8158597).

Almost surely, 2^16317193 is an apocalyptic number.

It is an amenable number.

16317193 is a deficient number, since it is larger than the sum of its proper divisors (1).

16317193 is an equidigital number, since it uses as much as digits as its factorization.

16317193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3402, while the sum is 31.

The square root of 16317193 is about 4039.4545423856. The cubic root of 16317193 is about 253.6384848152.

The spelling of 16317193 in words is "sixteen million, three hundred seventeen thousand, one hundred ninety-three".