1091160404 has 6 divisors (see below), whose sum is σ = 1909530714. Its totient is φ = 545580200.

The previous prime is 1091160391. The next prime is 1091160407. The reversal of 1091160404 is 4040611901.

It can be written as a sum of positive squares in only one way, i.e., 826447504 + 264712900 = 28748^2 + 16270^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1091160407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136395047 + ... + 136395054.

It is an arithmetic number, because the mean of its divisors is an integer number (318255119).

Almost surely, 2^1091160404 is an apocalyptic number.

It is an amenable number.

1091160404 is a deficient number, since it is larger than the sum of its proper divisors (818370310).

1091160404 is a wasteful number, since it uses less digits than its factorization.

1091160404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272790105 (or 272790103 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 1091160404 is about 33032.7171755519. The cubic root of 1091160404 is about 1029.5075422595.

The spelling of 1091160404 in words is "one billion, ninety-one million, one hundred sixty thousand, four hundred four".