11247457 has 6 divisors (see below), whose sum is σ = 12179382. Its totient is φ = 10382112.

The previous prime is 11247427. The next prime is 11247469. The reversal of 11247457 is 75474211.

It can be written as a sum of positive squares in 3 ways, for example, as 495616 + 10751841 = 704^2 + 3279^2 .

It is not a de Polignac number, because 11247457 - 2¹⁹ = 10723169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11247427) 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, 33108 + ... + 33445.

It is an arithmetic number, because the mean of its divisors is an integer number (2029897).

Almost surely, 2^11247457 is an apocalyptic number.

It is an amenable number.

11247457 is a deficient number, since it is larger than the sum of its proper divisors (931925).

11247457 is an equidigital number, since it uses as much as digits as its factorization.

11247457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66579 (or 66566 counting only the distinct ones).

The product of its digits is 7840, while the sum is 31.

The square root of 11247457 is about 3353.7228567668. The cubic root of 11247457 is about 224.0533527781.

The spelling of 11247457 in words is "eleven million, two hundred forty-seven thousand, four hundred fifty-seven".