11047521 has 16 divisors (see below), whose sum is σ = 15903360. Its totient is φ = 6800640.

The previous prime is 11047511. The next prime is 11047537. The reversal of 11047521 is 12574011.

It is a happy number.

It is not a de Polignac number, because 11047521 - 2⁵ = 11047489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11047511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 760 + ... + 4761.

It is an arithmetic number, because the mean of its divisors is an integer number (993960).

Almost surely, 2^11047521 is an apocalyptic number.

It is an amenable number.

11047521 is a deficient number, since it is larger than the sum of its proper divisors (4855839).

11047521 is a wasteful number, since it uses less digits than its factorization.

11047521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5576.

The product of its (nonzero) digits is 280, while the sum is 21.

The square root of 11047521 is about 3323.7811299783. The cubic root of 11047521 is about 222.7178088491.

The spelling of 11047521 in words is "eleven million, forty-seven thousand, five hundred twenty-one".