1208616863 has 2 divisors, whose sum is σ = 1208616864. Its totient is φ = 1208616862.

The previous prime is 1208616841. The next prime is 1208616931. The reversal of 1208616863 is 3686168021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1208616863 - 2¹⁰ = 1208615839 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1208616863.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1208610863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 604308431 + 604308432.

It is an arithmetic number, because the mean of its divisors is an integer number (604308432).

Almost surely, 2^1208616863 is an apocalyptic number.

1208616863 is a deficient number, since it is larger than the sum of its proper divisors (1).

1208616863 is an equidigital number, since it uses as much as digits as its factorization.

1208616863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 1208616863 is about 34765.1673805837. The cubic root of 1208616863 is about 1065.1960560979.

The spelling of 1208616863 in words is "one billion, two hundred eight million, six hundred sixteen thousand, eight hundred sixty-three".