18064279 has 2 divisors, whose sum is σ = 18064280. Its totient is φ = 18064278.

The previous prime is 18064271. The next prime is 18064283. The reversal of 18064279 is 97246081.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18064279 - 2³ = 18064271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18064271) 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, 9032139 + 9032140.

It is an arithmetic number, because the mean of its divisors is an integer number (9032140).

Almost surely, 2^18064279 is an apocalyptic number.

18064279 is a deficient number, since it is larger than the sum of its proper divisors (1).

18064279 is an equidigital number, since it uses as much as digits as its factorization.

18064279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 18064279 is about 4250.2092889645. The cubic root of 18064279 is about 262.3857292504.

The spelling of 18064279 in words is "eighteen million, sixty-four thousand, two hundred seventy-nine".