11447147 has 2 divisors, whose sum is σ = 11447148. Its totient is φ = 11447146.

The previous prime is 11447143. The next prime is 11447207. The reversal of 11447147 is 74174411.

It is a weak prime.

It is an emirp because it is prime and its reverse (74174411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11447147 - 2² = 11447143 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11447143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5723573 + 5723574.

It is an arithmetic number, because the mean of its divisors is an integer number (5723574).

Almost surely, 2^11447147 is an apocalyptic number.

11447147 is a deficient number, since it is larger than the sum of its proper divisors (1).

11447147 is an equidigital number, since it uses as much as digits as its factorization.

11447147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3136, while the sum is 29.

The square root of 11447147 is about 3383.3632675195. The cubic root of 11447147 is about 225.3715474347.

The spelling of 11447147 in words is "eleven million, four hundred forty-seven thousand, one hundred forty-seven".