1185859 has 2 divisors, whose sum is σ = 1185860. Its totient is φ = 1185858.

The previous prime is 1185851. The next prime is 1185871. The reversal of 1185859 is 9585811.

It is a weak prime.

It is an emirp because it is prime and its reverse (9585811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1185859 - 2³ = 1185851 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1185851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 592929 + 592930.

It is an arithmetic number, because the mean of its divisors is an integer number (592930).

2^1185859 is an apocalyptic number.

1185859 is a deficient number, since it is larger than the sum of its proper divisors (1).

1185859 is an equidigital number, since it uses as much as digits as its factorization.

1185859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14400, while the sum is 37.

The square root of 1185859 is about 1088.9715331449. The cubic root of 1185859 is about 105.8467882674.

It can be divided in two parts, 11 and 85859, that multiplied together give a palindrome (944449).

The spelling of 1185859 in words is "one million, one hundred eighty-five thousand, eight hundred fifty-nine".