16317919 has 2 divisors, whose sum is σ = 16317920. Its totient is φ = 16317918.

The previous prime is 16317913. The next prime is 16317929. The reversal of 16317919 is 91971361.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16317919 - 2⁵ = 16317887 is a prime.

It is a super-2 number, since 2×16317919² = 532548960981122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16317913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8158959 + 8158960.

It is an arithmetic number, because the mean of its divisors is an integer number (8158960).

Almost surely, 2^16317919 is an apocalyptic number.

16317919 is a deficient number, since it is larger than the sum of its proper divisors (1).

16317919 is an equidigital number, since it uses as much as digits as its factorization.

16317919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10206, while the sum is 37.

The square root of 16317919 is about 4039.5444050041. The cubic root of 16317919 is about 253.6422464673.

The spelling of 16317919 in words is "sixteen million, three hundred seventeen thousand, nine hundred nineteen".