1101559 has 2 divisors, whose sum is σ = 1101560. Its totient is φ = 1101558.

The previous prime is 1101533. The next prime is 1101571. The reversal of 1101559 is 9551011.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1101559 - 2⁷ = 1101431 is a prime.

1101559 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1101509) 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, 550779 + 550780.

It is an arithmetic number, because the mean of its divisors is an integer number (550780).

2^1101559 is an apocalyptic number.

1101559 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101559 is an equidigital number, since it uses as much as digits as its factorization.

1101559 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 225, while the sum is 22.

The square root of 1101559 is about 1049.5518091071. The cubic root of 1101559 is about 103.2767559400.

The spelling of 1101559 in words is "one million, one hundred one thousand, five hundred fifty-nine".