1109790505 has 8 divisors (see below), whose sum is σ = 1332262152. Its totient is φ = 887490048.

The previous prime is 1109790491. The next prime is 1109790511. The reversal of 1109790505 is 5050979011.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 24681024 + 1085109481 = 4968^2 + 32941^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1109790505 - 2¹¹ = 1109788457 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28072 + ... + 54841.

It is an arithmetic number, because the mean of its divisors is an integer number (166532769).

Almost surely, 2^1109790505 is an apocalyptic number.

It is an amenable number.

1109790505 is a deficient number, since it is larger than the sum of its proper divisors (222471647).

1109790505 is an equidigital number, since it uses as much as digits as its factorization.

1109790505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85595.

The product of its (nonzero) digits is 14175, while the sum is 37.

The square root of 1109790505 is about 33313.5183521645. The cubic root of 1109790505 is about 1035.3336629498. Note that the first 3 decimals are identical.

The spelling of 1109790505 in words is "one billion, one hundred nine million, seven hundred ninety thousand, five hundred five".