12118567 has 2 divisors, whose sum is σ = 12118568. Its totient is φ = 12118566.

The previous prime is 12118553. The next prime is 12118591. The reversal of 12118567 is 76581121.

It is a weak prime.

It is an emirp because it is prime and its reverse (76581121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12118567 - 2²³ = 3729959 is a prime.

It is a super-2 number, since 2×12118567² = 293719332266978, which contains 22 as substring.

It is equal to p₇₉₅₃₁₆ and since 12118567 and 795316 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12118537) 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, 6059283 + 6059284.

It is an arithmetic number, because the mean of its divisors is an integer number (6059284).

Almost surely, 2^12118567 is an apocalyptic number.

12118567 is a deficient number, since it is larger than the sum of its proper divisors (1).

12118567 is an equidigital number, since it uses as much as digits as its factorization.

12118567 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3360, while the sum is 31.

The square root of 12118567 is about 3481.1732217745. The cubic root of 12118567 is about 229.6944082671.

Adding to 12118567 its reverse (76581121), we get a palindrome (88699688).

The spelling of 12118567 in words is "twelve million, one hundred eighteen thousand, five hundred sixty-seven".