12118487 has 2 divisors, whose sum is σ = 12118488. Its totient is φ = 12118486.

The previous prime is 12118481. The next prime is 12118529. The reversal of 12118487 is 78481121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12118487 - 2⁴ = 12118471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12118481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6059243 + 6059244.

It is an arithmetic number, because the mean of its divisors is an integer number (6059244).

Almost surely, 2^12118487 is an apocalyptic number.

12118487 is a deficient number, since it is larger than the sum of its proper divisors (1).

12118487 is an equidigital number, since it uses as much as digits as its factorization.

12118487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3584, while the sum is 32.

The square root of 12118487 is about 3481.1617313765. The cubic root of 12118487 is about 229.6939028280.

The spelling of 12118487 in words is "twelve million, one hundred eighteen thousand, four hundred eighty-seven".