12259487 has 2 divisors, whose sum is σ = 12259488. Its totient is φ = 12259486.

The previous prime is 12259463. The next prime is 12259501. The reversal of 12259487 is 78495221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12259487 - 2¹⁴ = 12243103 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12259487.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12259417) 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, 6129743 + 6129744.

It is an arithmetic number, because the mean of its divisors is an integer number (6129744).

Almost surely, 2^12259487 is an apocalyptic number.

12259487 is a deficient number, since it is larger than the sum of its proper divisors (1).

12259487 is an equidigital number, since it uses as much as digits as its factorization.

12259487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 38.

The square root of 12259487 is about 3501.3550234159. The cubic root of 12259487 is about 230.5813083753.

The spelling of 12259487 in words is "twelve million, two hundred fifty-nine thousand, four hundred eighty-seven".