1180811 has 2 divisors, whose sum is σ = 1180812. Its totient is φ = 1180810.

The previous prime is 1180807. The next prime is 1180819.

1180811 is nontrivially palindromic in base 10.

It is a weak prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 1180811 - 2² = 1180807 is a prime.

It is a Chen prime.

1180811 is a strobogrammatic number because it is the same when read upside-down.

It is not a weakly prime, because it can be changed into another prime (1180819) 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, 590405 + 590406.

It is an arithmetic number, because the mean of its divisors is an integer number (590406).

2^1180811 is an apocalyptic number.

1180811 is a deficient number, since it is larger than the sum of its proper divisors (1).

1180811 is an equidigital number, since it uses as much as digits as its factorization.

1180811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 20.

The square root of 1180811 is about 1086.6512780096. The cubic root of 1180811 is about 105.6963840604.

It can be divided in two parts, 1180 and 811, that added together give a palindrome (1991).

The spelling of 1180811 in words is "one million, one hundred eighty thousand, eight hundred eleven".