1009139 has 2 divisors, whose sum is σ = 1009140. Its totient is φ = 1009138.

The previous prime is 1009121. The next prime is 1009153. The reversal of 1009139 is 9319001.

It is a strong prime.

It is an emirp because it is prime and its reverse (9319001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1009139 - 2¹⁶ = 943603 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1009159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 504569 + 504570.

It is an arithmetic number, because the mean of its divisors is an integer number (504570).

2^1009139 is an apocalyptic number.

1009139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1009139 is an equidigital number, since it uses as much as digits as its factorization.

1009139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 243, while the sum is 23.

The square root of 1009139 is about 1004.5591072704. The cubic root of 1009139 is about 100.3037100019.

The spelling of 1009139 in words is "one million, nine thousand, one hundred thirty-nine".