1153823863 has 2 divisors, whose sum is σ = 1153823864. Its totient is φ = 1153823862.

The previous prime is 1153823831. The next prime is 1153823917. The reversal of 1153823863 is 3683283511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1153823863 - 2⁵ = 1153823831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1153823063) 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, 576911931 + 576911932.

It is an arithmetic number, because the mean of its divisors is an integer number (576911932).

Almost surely, 2^1153823863 is an apocalyptic number.

1153823863 is a deficient number, since it is larger than the sum of its proper divisors (1).

1153823863 is an equidigital number, since it uses as much as digits as its factorization.

1153823863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 40.

The square root of 1153823863 is about 33967.9829103819. The cubic root of 1153823863 is about 1048.8494920535.

The spelling of 1153823863 in words is "one billion, one hundred fifty-three million, eight hundred twenty-three thousand, eight hundred sixty-three".