12240469 has 2 divisors, whose sum is σ = 12240470. Its totient is φ = 12240468.

The previous prime is 12240467. The next prime is 12240511. The reversal of 12240469 is 96404221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11985444 + 255025 = 3462^2 + 505^2 .

It is an emirp because it is prime and its reverse (96404221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12240469 - 2¹ = 12240467 is a prime.

It is a super-2 number, since 2×12240469² = 299658162679922, which contains 22 as substring.

Together with 12240467, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12240467) 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, 6120234 + 6120235.

It is an arithmetic number, because the mean of its divisors is an integer number (6120235).

Almost surely, 2^12240469 is an apocalyptic number.

It is an amenable number.

12240469 is a deficient number, since it is larger than the sum of its proper divisors (1).

12240469 is an equidigital number, since it uses as much as digits as its factorization.

12240469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 12240469 is about 3498.6381636288. The cubic root of 12240469 is about 230.4620139642.

The spelling of 12240469 in words is "twelve million, two hundred forty thousand, four hundred sixty-nine".