11247013 has 6 divisors (see below), whose sum is σ = 11947826. Its totient is φ = 10585152.

The previous prime is 11247011. The next prime is 11247083. The reversal of 11247013 is 31074211.

It can be written as a sum of positive squares in 3 ways, for example, as 2259009 + 8988004 = 1503^2 + 2998^2 .

It is not a de Polignac number, because 11247013 - 2¹ = 11247011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11247011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19170 + ... + 19747.

Almost surely, 2^11247013 is an apocalyptic number.

It is an amenable number.

11247013 is a deficient number, since it is larger than the sum of its proper divisors (700813).

11247013 is an equidigital number, since it uses as much as digits as its factorization.

11247013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38951 (or 38934 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 11247013 is about 3353.6566610194. The cubic root of 11247013 is about 224.0504045266.

The spelling of 11247013 in words is "eleven million, two hundred forty-seven thousand, thirteen".