111001139 has 2 divisors, whose sum is σ = 111001140. Its totient is φ = 111001138.

The previous prime is 111001117. The next prime is 111001153. The reversal of 111001139 is 931100111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111001139 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (111001159) 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, 55500569 + 55500570.

It is an arithmetic number, because the mean of its divisors is an integer number (55500570).

Almost surely, 2^111001139 is an apocalyptic number.

111001139 is a deficient number, since it is larger than the sum of its proper divisors (1).

111001139 is an equidigital number, since it uses as much as digits as its factorization.

111001139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27, while the sum is 17.

The square root of 111001139 is about 10535.7078072619. The cubic root of 111001139 is about 480.5911971832.

The spelling of 111001139 in words is "one hundred eleven million, one thousand, one hundred thirty-nine".