12251047 has 2 divisors, whose sum is σ = 12251048. Its totient is φ = 12251046.

The previous prime is 12251039. The next prime is 12251051. The reversal of 12251047 is 74015221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12251047 - 2³ = 12251039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12251077) 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, 6125523 + 6125524.

It is an arithmetic number, because the mean of its divisors is an integer number (6125524).

Almost surely, 2^12251047 is an apocalyptic number.

12251047 is a deficient number, since it is larger than the sum of its proper divisors (1).

12251047 is an equidigital number, since it uses as much as digits as its factorization.

12251047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 12251047 is about 3500.1495682328. The cubic root of 12251047 is about 230.5283819353.

Adding to 12251047 its reverse (74015221), we get a palindrome (86266268).

The spelling of 12251047 in words is "twelve million, two hundred fifty-one thousand, forty-seven".