18016319 has 2 divisors, whose sum is σ = 18016320. Its totient is φ = 18016318.

The previous prime is 18016307. The next prime is 18016331. The reversal of 18016319 is 91361081.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (18016307) and next prime (18016331).

It is a cyclic number.

It is not a de Polignac number, because 18016319 - 2⁴ = 18016303 is a prime.

It is a super-2 number, since 2×18016319² = 649175500619522, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 18016291 and 18016300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18016519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9008159 + 9008160.

It is an arithmetic number, because the mean of its divisors is an integer number (9008160).

Almost surely, 2^18016319 is an apocalyptic number.

18016319 is a deficient number, since it is larger than the sum of its proper divisors (1).

18016319 is an equidigital number, since it uses as much as digits as its factorization.

18016319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 18016319 is about 4244.5634640090. The cubic root of 18016319 is about 262.1533152740.

The spelling of 18016319 in words is "eighteen million, sixteen thousand, three hundred nineteen".