1080921193 has 6 divisors (see below), whose sum is σ = 1188120122. Its totient is φ = 982655520.

The previous prime is 1080921173. The next prime is 1080921197. The reversal of 1080921193 is 3911290801.

It can be written as a sum of positive squares in only one way, i.e., 713317264 + 367603929 = 26708^2 + 19173^2 .

It is not a de Polignac number, because 1080921193 - 2⁹ = 1080920681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1080921197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4466496 + ... + 4466737.

Almost surely, 2^1080921193 is an apocalyptic number.

It is an amenable number.

1080921193 is a deficient number, since it is larger than the sum of its proper divisors (107198929).

1080921193 is an equidigital number, since it uses as much as digits as its factorization.

1080921193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8933255 (or 8933244 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 34.

The square root of 1080921193 is about 32877.3659680942. The cubic root of 1080921193 is about 1026.2771921209.

The spelling of 1080921193 in words is "one billion, eighty million, nine hundred twenty-one thousand, one hundred ninety-three".