1090325865 has 16 divisors (see below), whose sum is σ = 1746531648. Its totient is φ = 580837056.

The previous prime is 1090325857. The next prime is 1090325867. The reversal of 1090325865 is 5685230901.

It is not a de Polignac number, because 1090325865 - 2³ = 1090325857 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1090325867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28287 + ... + 54596.

It is an arithmetic number, because the mean of its divisors is an integer number (109158228).

Almost surely, 2^1090325865 is an apocalyptic number.

1090325865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1090325865 is a deficient number, since it is larger than the sum of its proper divisors (656205783).

1090325865 is an equidigital number, since it uses as much as digits as its factorization.

1090325865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83768.

The product of its (nonzero) digits is 64800, while the sum is 39.

The square root of 1090325865 is about 33020.0827527733. The cubic root of 1090325865 is about 1029.2450133898.

The spelling of 1090325865 in words is "one billion, ninety million, three hundred twenty-five thousand, eight hundred sixty-five".