1095309 has 16 divisors (see below), whose sum is σ = 1641600. Its totient is φ = 721728.

The previous prime is 1095287. The next prime is 1095313. The reversal of 1095309 is 9035901.

It is not a de Polignac number, because 1095309 - 2¹³ = 1087117 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1095319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2872 + ... + 3230.

It is an arithmetic number, because the mean of its divisors is an integer number (102600).

2^1095309 is an apocalyptic number.

It is an amenable number.

1095309 is a deficient number, since it is larger than the sum of its proper divisors (546291).

1095309 is a wasteful number, since it uses less digits than its factorization.

1095309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481 (or 475 counting only the distinct ones).

The product of its (nonzero) digits is 1215, while the sum is 27.

The square root of 1095309 is about 1046.5701123193. The cubic root of 1095309 is about 103.0810622742.

The spelling of 1095309 in words is "one million, ninety-five thousand, three hundred nine".