111004987 has 2 divisors, whose sum is σ = 111004988. Its totient is φ = 111004986.

The previous prime is 111004981. The next prime is 111005029. The reversal of 111004987 is 789400111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111004987 - 2³ = 111004979 is a prime.

It is not a weakly prime, because it can be changed into another prime (111004981) 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, 55502493 + 55502494.

It is an arithmetic number, because the mean of its divisors is an integer number (55502494).

Almost surely, 2^111004987 is an apocalyptic number.

111004987 is a deficient number, since it is larger than the sum of its proper divisors (1).

111004987 is an equidigital number, since it uses as much as digits as its factorization.

111004987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 31.

The square root of 111004987 is about 10535.8904227407. The cubic root of 111004987 is about 480.5967505604.

The spelling of 111004987 in words is "one hundred eleven million, four thousand, nine hundred eighty-seven".