12147587 has 2 divisors, whose sum is σ = 12147588. Its totient is φ = 12147586.

The previous prime is 12147563. The next prime is 12147589. The reversal of 12147587 is 78574121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12147587 - 2¹⁸ = 11885443 is a prime.

Together with 12147589, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12147589) 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, 6073793 + 6073794.

It is an arithmetic number, because the mean of its divisors is an integer number (6073794).

Almost surely, 2^12147587 is an apocalyptic number.

12147587 is a deficient number, since it is larger than the sum of its proper divisors (1).

12147587 is an equidigital number, since it uses as much as digits as its factorization.

12147587 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15680, while the sum is 35.

The square root of 12147587 is about 3485.3388644435. The cubic root of 12147587 is about 229.8776097421.

The spelling of 12147587 in words is "twelve million, one hundred forty-seven thousand, five hundred eighty-seven".