1153109 has 2 divisors, whose sum is σ = 1153110. Its totient is φ = 1153108.

The previous prime is 1153099. The next prime is 1153123. The reversal of 1153109 is 9013511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 819025 + 334084 = 905^2 + 578^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1153109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1153199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 576554 + 576555.

It is an arithmetic number, because the mean of its divisors is an integer number (576555).

2^1153109 is an apocalyptic number.

It is an amenable number.

1153109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1153109 is an equidigital number, since it uses as much as digits as its factorization.

1153109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 135, while the sum is 20.

The square root of 1153109 is about 1073.8291297967. The cubic root of 1153109 is about 104.8632838941.

The spelling of 1153109 in words is "one million, one hundred fifty-three thousand, one hundred nine".