1180455863 has 2 divisors, whose sum is σ = 1180455864. Its totient is φ = 1180455862.

The previous prime is 1180455847. The next prime is 1180455907. The reversal of 1180455863 is 3685540811.

It is a weak prime.

It is an emirp because it is prime and its reverse (3685540811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1180455863 - 2⁴ = 1180455847 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1180455863.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1180455833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 590227931 + 590227932.

It is an arithmetic number, because the mean of its divisors is an integer number (590227932).

Almost surely, 2^1180455863 is an apocalyptic number.

1180455863 is a deficient number, since it is larger than the sum of its proper divisors (1).

1180455863 is an equidigital number, since it uses as much as digits as its factorization.

1180455863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 115200, while the sum is 41.

The square root of 1180455863 is about 34357.7627764091. The cubic root of 1180455863 is about 1056.8578669401.

The spelling of 1180455863 in words is "one billion, one hundred eighty million, four hundred fifty-five thousand, eight hundred sixty-three".