12464509 has 2 divisors, whose sum is σ = 12464510. Its totient is φ = 12464508.

The previous prime is 12464503. The next prime is 12464549. The reversal of 12464509 is 90546421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12404484 + 60025 = 3522^2 + 245^2 .

It is a cyclic number.

It is not a de Polignac number, because 12464509 - 2¹⁷ = 12333437 is a prime.

It is a super-2 number, since 2×12464509² = 310727969222162, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12464503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6232254 + 6232255.

It is an arithmetic number, because the mean of its divisors is an integer number (6232255).

Almost surely, 2^12464509 is an apocalyptic number.

It is an amenable number.

12464509 is a deficient number, since it is larger than the sum of its proper divisors (1).

12464509 is an equidigital number, since it uses as much as digits as its factorization.

12464509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 12464509 is about 3530.5111527936. The cubic root of 12464509 is about 231.8595873007.

The spelling of 12464509 in words is "twelve million, four hundred sixty-four thousand, five hundred nine".