1011139 has 2 divisors, whose sum is σ = 1011140. Its totient is φ = 1011138.

The previous prime is 1011137. The next prime is 1011163. The reversal of 1011139 is 9311101.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1011139 - 2¹ = 1011137 is a prime.

Together with 1011137, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1011137) 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, 505569 + 505570.

It is an arithmetic number, because the mean of its divisors is an integer number (505570).

2^1011139 is an apocalyptic number.

1011139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011139 is an equidigital number, since it uses as much as digits as its factorization.

1011139 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 16.

The square root of 1011139 is about 1005.5540761192. The cubic root of 1011139 is about 100.3699298317.

The spelling of 1011139 in words is "one million, eleven thousand, one hundred thirty-nine".