12528469 has 2 divisors, whose sum is σ = 12528470. Its totient is φ = 12528468.

The previous prime is 12528463. The next prime is 12528499. The reversal of 12528469 is 96482521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12517444 + 11025 = 3538^2 + 105^2 .

It is an emirp because it is prime and its reverse (96482521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12528469 - 2¹⁷ = 12397397 is a prime.

It is a super-2 number, since 2×12528469² = 313925070967922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12528463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6264234 + 6264235.

It is an arithmetic number, because the mean of its divisors is an integer number (6264235).

Almost surely, 2^12528469 is an apocalyptic number.

It is an amenable number.

12528469 is a deficient number, since it is larger than the sum of its proper divisors (1).

12528469 is an equidigital number, since it uses as much as digits as its factorization.

12528469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 37.

The square root of 12528469 is about 3539.5577407354. The cubic root of 12528469 is about 232.2554966153.

The spelling of 12528469 in words is "twelve million, five hundred twenty-eight thousand, four hundred sixty-nine".