1108975905 has 12 divisors (see below), whose sum is σ = 1922224980. Its totient is φ = 591453792.

The previous prime is 1108975873. The next prime is 1108975939. The reversal of 1108975905 is 5095798011.

It can be written as a sum of positive squares in 2 ways, for example, as 612265536 + 496710369 = 24744^2 + 22287^2 .

It is not a de Polignac number, because 1108975905 - 2⁵ = 1108975873 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 24643909 = 1108975905 / (1 + 1 + 0 + 8 + 9 + 7 + 5 + 9 + 0 + 5).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12321910 + ... + 12321999.

It is an arithmetic number, because the mean of its divisors is an integer number (160185415).

Almost surely, 2^1108975905 is an apocalyptic number.

1108975905 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1108975905 is a deficient number, since it is larger than the sum of its proper divisors (813249075).

1108975905 is a wasteful number, since it uses less digits than its factorization.

1108975905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24643920 (or 24643917 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 45.

The square root of 1108975905 is about 33301.2898398846. The cubic root of 1108975905 is about 1035.0802850275.

The spelling of 1108975905 in words is "one billion, one hundred eight million, nine hundred seventy-five thousand, nine hundred five".