11047513 has 4 divisors (see below), whose sum is σ = 11104948. Its totient is φ = 10990080.

The previous prime is 11047511. The next prime is 11047537. The reversal of 11047513 is 31574011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2474329 + 8573184 = 1573^2 + 2928^2 .

It is a cyclic number.

It is not a de Polignac number, because 11047513 - 2¹ = 11047511 is a prime.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 28428 + ... + 28813.

It is an arithmetic number, because the mean of its divisors is an integer number (2776237).

Almost surely, 2^11047513 is an apocalyptic number.

It is an amenable number.

11047513 is a deficient number, since it is larger than the sum of its proper divisors (57435).

11047513 is an equidigital number, since it uses as much as digits as its factorization.

11047513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57434.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 11047513 is about 3323.7799265294. The cubic root of 11047513 is about 222.7177550891.

The spelling of 11047513 in words is "eleven million, forty-seven thousand, five hundred thirteen".