111516863 has 2 divisors, whose sum is σ = 111516864. Its totient is φ = 111516862.

The previous prime is 111516859. The next prime is 111516883. The reversal of 111516863 is 368615111.

It is a weak prime.

It is an emirp because it is prime and its reverse (368615111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111516863 - 2² = 111516859 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111516883) 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, 55758431 + 55758432.

It is an arithmetic number, because the mean of its divisors is an integer number (55758432).

Almost surely, 2^111516863 is an apocalyptic number.

111516863 is a deficient number, since it is larger than the sum of its proper divisors (1).

111516863 is an equidigital number, since it uses as much as digits as its factorization.

111516863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 32.

The square root of 111516863 is about 10560.1544969759. The cubic root of 111516863 is about 481.3343413657.

The spelling of 111516863 in words is "one hundred eleven million, five hundred sixteen thousand, eight hundred sixty-three".