11285761 has 2 divisors, whose sum is σ = 11285762. Its totient is φ = 11285760.

The previous prime is 11285749. The next prime is 11285779. The reversal of 11285761 is 16758211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10439361 + 846400 = 3231^2 + 920^2 .

It is an emirp because it is prime and its reverse (16758211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11285761 - 2⁷ = 11285633 is a prime.

It is not a weakly prime, because it can be changed into another prime (11285711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5642880 + 5642881.

It is an arithmetic number, because the mean of its divisors is an integer number (5642881).

Almost surely, 2^11285761 is an apocalyptic number.

It is an amenable number.

11285761 is a deficient number, since it is larger than the sum of its proper divisors (1).

11285761 is an equidigital number, since it uses as much as digits as its factorization.

11285761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3360, while the sum is 31.

The square root of 11285761 is about 3359.4286716643. The cubic root of 11285761 is about 224.3074077068.

It can be divided in two parts, 1128 and 5761, that added together give a square (6889 = 83²).

The spelling of 11285761 in words is "eleven million, two hundred eighty-five thousand, seven hundred sixty-one".