111122159 has 2 divisors, whose sum is σ = 111122160. Its totient is φ = 111122158.

The previous prime is 111122117. The next prime is 111122173. The reversal of 111122159 is 951221111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111122159 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111122189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55561079 + 55561080.

It is an arithmetic number, because the mean of its divisors is an integer number (55561080).

Almost surely, 2^111122159 is an apocalyptic number.

111122159 is a deficient number, since it is larger than the sum of its proper divisors (1).

111122159 is an equidigital number, since it uses as much as digits as its factorization.

111122159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 180, while the sum is 23.

The square root of 111122159 is about 10541.4495682520. The cubic root of 111122159 is about 480.7657900541.

The spelling of 111122159 in words is "one hundred eleven million, one hundred twenty-two thousand, one hundred fifty-nine".