1095409 has 4 divisors (see below), whose sum is σ = 1251904. Its totient is φ = 938916.

The previous prime is 1095403. The next prime is 1095427. The reversal of 1095409 is 9045901.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1095409 - 2³ = 1095401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1095401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78237 + ... + 78250.

It is an arithmetic number, because the mean of its divisors is an integer number (312976).

2^1095409 is an apocalyptic number.

It is an amenable number.

1095409 is a deficient number, since it is larger than the sum of its proper divisors (156495).

1095409 is an equidigital number, since it uses as much as digits as its factorization.

1095409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156494.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 1095409 is about 1046.6178863367. The cubic root of 1095409 is about 103.0841992253.

The spelling of 1095409 in words is "one million, ninety-five thousand, four hundred nine".