1109059505 has 4 divisors (see below), whose sum is σ = 1330871412. Its totient is φ = 887247600.

The previous prime is 1109059453. The next prime is 1109059513. The reversal of 1109059505 is 5059509011.

It is a happy number.

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 118635664 + 990423841 = 10892^2 + 31471^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1109059505 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110905946 + ... + 110905955.

It is an arithmetic number, because the mean of its divisors is an integer number (332717853).

Almost surely, 2^1109059505 is an apocalyptic number.

It is an amenable number.

1109059505 is a deficient number, since it is larger than the sum of its proper divisors (221811907).

1109059505 is an equidigital number, since it uses as much as digits as its factorization.

1109059505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221811906.

The product of its (nonzero) digits is 10125, while the sum is 35.

The square root of 1109059505 is about 33302.5450228657. The cubic root of 1109059505 is about 1035.1062941701.

The spelling of 1109059505 in words is "one billion, one hundred nine million, fifty-nine thousand, five hundred five".