1095643 has 4 divisors (see below), whose sum is σ = 1122408. Its totient is φ = 1068880.

The previous prime is 1095631. The next prime is 1095671. The reversal of 1095643 is 3465901.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1095643 - 2¹³ = 1087451 is a prime.

It is a Duffinian number.

1095643 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1095613) 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 in 3 ways as a sum of consecutive naturals, for example, 13321 + ... + 13402.

It is an arithmetic number, because the mean of its divisors is an integer number (280602).

2^1095643 is an apocalyptic number.

1095643 is a deficient number, since it is larger than the sum of its proper divisors (26765).

1095643 is an equidigital number, since it uses as much as digits as its factorization.

1095643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26764.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 1095643 is about 1046.7296690168. The cubic root of 1095643 is about 103.0915389451.

The spelling of 1095643 in words is "one million, ninety-five thousand, six hundred forty-three".