111022489 has 2 divisors, whose sum is σ = 111022490. Its totient is φ = 111022488.

The previous prime is 111022481. The next prime is 111022493. The reversal of 111022489 is 984220111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110944089 + 78400 = 10533^2 + 280^2 .

It is a cyclic number.

It is not a de Polignac number, because 111022489 - 2³ = 111022481 is a prime.

It is not a weakly prime, because it can be changed into another prime (111022481) 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, 55511244 + 55511245.

It is an arithmetic number, because the mean of its divisors is an integer number (55511245).

Almost surely, 2^111022489 is an apocalyptic number.

It is an amenable number.

111022489 is a deficient number, since it is larger than the sum of its proper divisors (1).

111022489 is an equidigital number, since it uses as much as digits as its factorization.

111022489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 111022489 is about 10536.7209795078. The cubic root of 111022489 is about 480.6220075706.

The spelling of 111022489 in words is "one hundred eleven million, twenty-two thousand, four hundred eighty-nine".