1108955905 has 16 divisors (see below), whose sum is σ = 1385567568. Its totient is φ = 851328000.

The previous prime is 1108955899. The next prime is 1108955923. The reversal of 1108955905 is 5095598011.

It can be written as a sum of positive squares in 8 ways, for example, as 806787216 + 302168689 = 28404^2 + 17383^2 .

It is not a de Polignac number, because 1108955905 - 2⁵ = 1108955873 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31836 + ... + 56845.

It is an arithmetic number, because the mean of its divisors is an integer number (86597973).

Almost surely, 2^1108955905 is an apocalyptic number.

It is an amenable number.

1108955905 is a deficient number, since it is larger than the sum of its proper divisors (276611663).

1108955905 is an equidigital number, since it uses as much as digits as its factorization.

1108955905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88788.

The product of its (nonzero) digits is 81000, while the sum is 43.

The square root of 1108955905 is about 33300.9895498617. The cubic root of 1108955905 is about 1035.0740625508.

The spelling of 1108955905 in words is "one billion, one hundred eight million, nine hundred fifty-five thousand, nine hundred five".