12472547 has 2 divisors, whose sum is σ = 12472548. Its totient is φ = 12472546.

The previous prime is 12472517. The next prime is 12472567. The reversal of 12472547 is 74527421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12472547 - 2⁶ = 12472483 is a prime.

It is not a weakly prime, because it can be changed into another prime (12472517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6236273 + 6236274.

It is an arithmetic number, because the mean of its divisors is an integer number (6236274).

Almost surely, 2^12472547 is an apocalyptic number.

12472547 is a deficient number, since it is larger than the sum of its proper divisors (1).

12472547 is an equidigital number, since it uses as much as digits as its factorization.

12472547 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15680, while the sum is 32.

The square root of 12472547 is about 3531.6493314031. The cubic root of 12472547 is about 231.9094164301.

Subtracting from 12472547 its sum of digits (32), we obtain a triangular number (12472515 = T₄₉₉₄).

Adding to 12472547 its reverse (74527421), we get a palindrome (86999968).

The spelling of 12472547 in words is "twelve million, four hundred seventy-two thousand, five hundred forty-seven".