18067069 has 2 divisors, whose sum is σ = 18067070. Its totient is φ = 18067068.

The previous prime is 18067061. The next prime is 18067097. The reversal of 18067069 is 96076081.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10432900 + 7634169 = 3230^2 + 2763^2 .

It is a cyclic number.

It is not a de Polignac number, because 18067069 - 2³ = 18067061 is a prime.

It is a super-2 number, since 2×18067069² = 652837964501522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18067061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9033534 + 9033535.

It is an arithmetic number, because the mean of its divisors is an integer number (9033535).

Almost surely, 2^18067069 is an apocalyptic number.

It is an amenable number.

18067069 is a deficient number, since it is larger than the sum of its proper divisors (1).

18067069 is an equidigital number, since it uses as much as digits as its factorization.

18067069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 18067069 is about 4250.5374954234. The cubic root of 18067069 is about 262.3992369119.

The spelling of 18067069 in words is "eighteen million, sixty-seven thousand, sixty-nine".