12415231 has 2 divisors, whose sum is σ = 12415232. Its totient is φ = 12415230.

The previous prime is 12415229. The next prime is 12415237. The reversal of 12415231 is 13251421.

It is a weak prime.

It is an emirp because it is prime and its reverse (13251421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12415231 - 2¹ = 12415229 is a prime.

It is a super-2 number, since 2×12415231² = 308275921566722, which contains 22 as substring.

Together with 12415229, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 12415199 and 12415208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12415237) 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, 6207615 + 6207616.

It is an arithmetic number, because the mean of its divisors is an integer number (6207616).

Almost surely, 2^12415231 is an apocalyptic number.

12415231 is a deficient number, since it is larger than the sum of its proper divisors (1).

12415231 is an equidigital number, since it uses as much as digits as its factorization.

12415231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 240, while the sum is 19.

The square root of 12415231 is about 3523.5253653124. The cubic root of 12415231 is about 231.5536341668.

Adding to 12415231 its reverse (13251421), we get a palindrome (25666652).

The spelling of 12415231 in words is "twelve million, four hundred fifteen thousand, two hundred thirty-one".