12045247 has 2 divisors, whose sum is σ = 12045248. Its totient is φ = 12045246.

The previous prime is 12045227. The next prime is 12045251. The reversal of 12045247 is 74254021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12045247 - 2¹⁵ = 12012479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12045217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6022623 + 6022624.

It is an arithmetic number, because the mean of its divisors is an integer number (6022624).

Almost surely, 2^12045247 is an apocalyptic number.

12045247 is a deficient number, since it is larger than the sum of its proper divisors (1).

12045247 is an equidigital number, since it uses as much as digits as its factorization.

12045247 is an evil number, because the sum of its binary digits is even.

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

The square root of 12045247 is about 3470.6263123534. The cubic root of 12045247 is about 229.2302369683.

Adding to 12045247 its reverse (74254021), we get a palindrome (86299268).

The spelling of 12045247 in words is "twelve million, forty-five thousand, two hundred forty-seven".