1105009 has 2 divisors, whose sum is σ = 1105010. Its totient is φ = 1105008.

The previous prime is 1104959. The next prime is 1105019. The reversal of 1105009 is 9005011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1081600 + 23409 = 1040^2 + 153^2 .

It is an emirp because it is prime and its reverse (9005011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1105009 - 2¹³ = 1096817 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1104983 and 1105001.

It is not a weakly prime, because it can be changed into another prime (1105019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 552504 + 552505.

It is an arithmetic number, because the mean of its divisors is an integer number (552505).

2^1105009 is an apocalyptic number.

It is an amenable number.

1105009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1105009 is an equidigital number, since it uses as much as digits as its factorization.

1105009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45, while the sum is 16.

The square root of 1105009 is about 1051.1940829362. The cubic root of 1105009 is about 103.3844619217.

The spelling of 1105009 in words is "one million, one hundred five thousand, nine".