111516089 has 2 divisors, whose sum is σ = 111516090. Its totient is φ = 111516088.

The previous prime is 111516059. The next prime is 111516103. The reversal of 111516089 is 980615111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90402064 + 21114025 = 9508^2 + 4595^2 .

It is a cyclic number.

It is not a de Polignac number, because 111516089 - 2²⁴ = 94738873 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (111516059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55758044 + 55758045.

It is an arithmetic number, because the mean of its divisors is an integer number (55758045).

Almost surely, 2^111516089 is an apocalyptic number.

It is an amenable number.

111516089 is a deficient number, since it is larger than the sum of its proper divisors (1).

111516089 is an equidigital number, since it uses as much as digits as its factorization.

111516089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 32.

The square root of 111516089 is about 10560.1178497212. The cubic root of 111516089 is about 481.3332277713. Note that the first 3 decimals are identical.

The spelling of 111516089 in words is "one hundred eleven million, five hundred sixteen thousand, eighty-nine".