12450247 has 2 divisors, whose sum is σ = 12450248. Its totient is φ = 12450246.

The previous prime is 12450211. The next prime is 12450259. The reversal of 12450247 is 74205421.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12450247 is a prime.

It is a super-2 number, since 2×12450247² = 310017300722018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12450547) 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, 6225123 + 6225124.

It is an arithmetic number, because the mean of its divisors is an integer number (6225124).

Almost surely, 2^12450247 is an apocalyptic number.

12450247 is a deficient number, since it is larger than the sum of its proper divisors (1).

12450247 is an equidigital number, since it uses as much as digits as its factorization.

12450247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 12450247 is about 3528.4907538493. The cubic root of 12450247 is about 231.7711216299.

Adding to 12450247 its reverse (74205421), we get a palindrome (86655668).

The spelling of 12450247 in words is "twelve million, four hundred fifty thousand, two hundred forty-seven".