1138559 has 2 divisors, whose sum is σ = 1138560. Its totient is φ = 1138558.

The previous prime is 1138547. The next prime is 1138567. The reversal of 1138559 is 9558311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1138559 - 2²⁰ = 89983 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1138519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 569279 + 569280.

It is an arithmetic number, because the mean of its divisors is an integer number (569280).

2^1138559 is an apocalyptic number.

1138559 is a deficient number, since it is larger than the sum of its proper divisors (1).

1138559 is an equidigital number, since it uses as much as digits as its factorization.

1138559 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5400, while the sum is 32.

The square root of 1138559 is about 1067.0328017451. The cubic root of 1138559 is about 104.4203585709.

The spelling of 1138559 in words is "one million, one hundred thirty-eight thousand, five hundred fifty-nine".