1108870561 has 4 divisors (see below), whose sum is σ = 1113288624. Its totient is φ = 1104452500.

The previous prime is 1108870547. The next prime is 1108870573. The reversal of 1108870561 is 1650788011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1108870561 - 2¹³ = 1108862369 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1108870561.

It is not an unprimeable number, because it can be changed into a prime (1108873561) 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, 2208655 + ... + 2209156.

It is an arithmetic number, because the mean of its divisors is an integer number (278322156).

Almost surely, 2^1108870561 is an apocalyptic number.

It is an amenable number.

1108870561 is a deficient number, since it is larger than the sum of its proper divisors (4418063).

1108870561 is an equidigital number, since it uses as much as digits as its factorization.

1108870561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4418062.

The product of its (nonzero) digits is 13440, while the sum is 37.

The square root of 1108870561 is about 33299.7081218440. The cubic root of 1108870561 is about 1035.0475091574.

The spelling of 1108870561 in words is "one billion, one hundred eight million, eight hundred seventy thousand, five hundred sixty-one".