12258487 has 2 divisors, whose sum is σ = 12258488. Its totient is φ = 12258486.

The previous prime is 12258473. The next prime is 12258497. The reversal of 12258487 is 78485221.

It is a strong prime.

It is an emirp because it is prime and its reverse (78485221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12258487 is a prime.

It is a plaindrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12258427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6129243 + 6129244.

It is an arithmetic number, because the mean of its divisors is an integer number (6129244).

Almost surely, 2^12258487 is an apocalyptic number.

12258487 is a deficient number, since it is larger than the sum of its proper divisors (1).

12258487 is an equidigital number, since it uses as much as digits as its factorization.

12258487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35840, while the sum is 37.

The square root of 12258487 is about 3501.2122186466. The cubic root of 12258487 is about 230.5750387389.

The spelling of 12258487 in words is "twelve million, two hundred fifty-eight thousand, four hundred eighty-seven".