12390571 has 2 divisors, whose sum is σ = 12390572. Its totient is φ = 12390570.

The previous prime is 12390557. The next prime is 12390593. The reversal of 12390571 is 17509321.

12390571 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (17509321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12390571 - 2¹⁵ = 12357803 is a prime.

It is not a weakly prime, because it can be changed into another prime (12390541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6195285 + 6195286.

It is an arithmetic number, because the mean of its divisors is an integer number (6195286).

Almost surely, 2^12390571 is an apocalyptic number.

12390571 is a deficient number, since it is larger than the sum of its proper divisors (1).

12390571 is an equidigital number, since it uses as much as digits as its factorization.

12390571 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 12390571 is about 3520.0242896889. The cubic root of 12390571 is about 231.4002232099.

Adding to 12390571 its reverse (17509321), we get a palindrome (29899892).

The spelling of 12390571 in words is "twelve million, three hundred ninety thousand, five hundred seventy-one".