1104805309 has 4 divisors (see below), whose sum is σ = 1104970204. Its totient is φ = 1104640416.

The previous prime is 1104805307. The next prime is 1104805337. The reversal of 1104805309 is 9035084011.

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

It can be written as a sum of positive squares in 2 ways, for example, as 298529284 + 806276025 = 17278^2 + 28395^2 .

It is a cyclic number.

It is not a de Polignac number, because 1104805309 - 2¹ = 1104805307 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1104805307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71952 + ... + 85945.

It is an arithmetic number, because the mean of its divisors is an integer number (276242551).

Almost surely, 2^1104805309 is an apocalyptic number.

It is an amenable number.

1104805309 is a deficient number, since it is larger than the sum of its proper divisors (164895).

1104805309 is an equidigital number, since it uses as much as digits as its factorization.

1104805309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164894.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 1104805309 is about 33238.6117189031. The cubic root of 1104805309 is about 1033.7810909911.

The spelling of 1104805309 in words is "one billion, one hundred four million, eight hundred five thousand, three hundred nine".