1181963 has 2 divisors, whose sum is σ = 1181964. Its totient is φ = 1181962.

The previous prime is 1181927. The next prime is 1181969. The reversal of 1181963 is 3691811.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (3691811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1181963 - 2¹⁴ = 1165579 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1181969) 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, 590981 + 590982.

It is an arithmetic number, because the mean of its divisors is an integer number (590982).

2^1181963 is an apocalyptic number.

1181963 is a deficient number, since it is larger than the sum of its proper divisors (1).

1181963 is an equidigital number, since it uses as much as digits as its factorization.

1181963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 29.

The square root of 1181963 is about 1087.1812176450. The cubic root of 1181963 is about 105.7307453762.

The spelling of 1181963 in words is "one million, one hundred eighty-one thousand, nine hundred sixty-three".