12408511 has 2 divisors, whose sum is σ = 12408512. Its totient is φ = 12408510.

The previous prime is 12408509. The next prime is 12408533. The reversal of 12408511 is 11580421.

It is an a-pointer prime, because the next prime (12408533) can be obtained adding 12408511 to its sum of digits (22).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12408511 - 2¹ = 12408509 is a prime.

It is a super-2 number, since 2×12408511² = 307942290474242, which contains 22 as substring.

Together with 12408509, 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 (12408551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6204255 + 6204256.

It is an arithmetic number, because the mean of its divisors is an integer number (6204256).

Almost surely, 2^12408511 is an apocalyptic number.

12408511 is a deficient number, since it is larger than the sum of its proper divisors (1).

12408511 is an equidigital number, since it uses as much as digits as its factorization.

12408511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 12408511 is about 3522.5716458292. The cubic root of 12408511 is about 231.5118488991.

Adding to 12408511 its reverse (11580421), we get a palindrome (23988932).

The spelling of 12408511 in words is "twelve million, four hundred eight thousand, five hundred eleven".