1159091 has 2 divisors, whose sum is σ = 1159092. Its totient is φ = 1159090.

The previous prime is 1159087. The next prime is 1159127. The reversal of 1159091 is 1909511.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1159091 - 2² = 1159087 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1159091.

It is not a weakly prime, because it can be changed into another prime (1159001) 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, 579545 + 579546.

It is an arithmetic number, because the mean of its divisors is an integer number (579546).

2^1159091 is an apocalyptic number.

1159091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1159091 is an equidigital number, since it uses as much as digits as its factorization.

1159091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 405, while the sum is 26.

The square root of 1159091 is about 1076.6108860679. The cubic root of 1159091 is about 105.0443048101.

The spelling of 1159091 in words is "one million, one hundred fifty-nine thousand, ninety-one".