18012067 has 2 divisors, whose sum is σ = 18012068. Its totient is φ = 18012066.

The previous prime is 18012047. The next prime is 18012073. The reversal of 18012067 is 76021081.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18012067 - 2¹¹ = 18010019 is a prime.

It is a super-2 number, since 2×18012067² = 648869115224978, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (18012017) 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, 9006033 + 9006034.

It is an arithmetic number, because the mean of its divisors is an integer number (9006034).

Almost surely, 2^18012067 is an apocalyptic number.

18012067 is a deficient number, since it is larger than the sum of its proper divisors (1).

18012067 is an equidigital number, since it uses as much as digits as its factorization.

18012067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 18012067 is about 4244.0625584456. The cubic root of 18012067 is about 262.1326902026.

The spelling of 18012067 in words is "eighteen million, twelve thousand, sixty-seven".