11865751 has 2 divisors, whose sum is σ = 11865752. Its totient is φ = 11865750.

The previous prime is 11865739. The next prime is 11865757. The reversal of 11865751 is 15756811.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11865751 - 2¹¹ = 11863703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11865757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5932875 + 5932876.

It is an arithmetic number, because the mean of its divisors is an integer number (5932876).

Almost surely, 2^11865751 is an apocalyptic number.

11865751 is a deficient number, since it is larger than the sum of its proper divisors (1).

11865751 is an equidigital number, since it uses as much as digits as its factorization.

11865751 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8400, while the sum is 34.

The square root of 11865751 is about 3444.6699406474. The cubic root of 11865751 is about 228.0858851057.

The spelling of 11865751 in words is "eleven million, eight hundred sixty-five thousand, seven hundred fifty-one".