11855267 has 2 divisors, whose sum is σ = 11855268. Its totient is φ = 11855266.

The previous prime is 11855231. The next prime is 11855269. The reversal of 11855267 is 76255811.

It is a strong prime.

It is an emirp because it is prime and its reverse (76255811) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11855267 is a prime.

Together with 11855269, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11855269) by changing a digit.

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

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5927633 + 5927634.

It is an arithmetic number, because the mean of its divisors is an integer number (5927634).

Almost surely, 2^11855267 is an apocalyptic number.

11855267 is a deficient number, since it is larger than the sum of its proper divisors (1).

11855267 is an equidigital number, since it uses as much as digits as its factorization.

11855267 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16800, while the sum is 35.

The square root of 11855267 is about 3443.1478330156. The cubic root of 11855267 is about 228.0186901166.

The spelling of 11855267 in words is "eleven million, eight hundred fifty-five thousand, two hundred sixty-seven".