11047147 has 4 divisors (see below), whose sum is σ = 11053800. Its totient is φ = 11040496.

The previous prime is 11047139. The next prime is 11047171. The reversal of 11047147 is 74174011.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 11047147 - 2³ = 11047139 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (11047117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1479 + ... + 4927.

It is an arithmetic number, because the mean of its divisors is an integer number (2763450).

Almost surely, 2^11047147 is an apocalyptic number.

11047147 is a deficient number, since it is larger than the sum of its proper divisors (6653).

11047147 is an equidigital number, since it uses as much as digits as its factorization.

11047147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6652.

The product of its (nonzero) digits is 784, while the sum is 25.

The square root of 11047147 is about 3323.7248682766. The cubic root of 11047147 is about 222.7152955431.

The spelling of 11047147 in words is "eleven million, forty-seven thousand, one hundred forty-seven".