1090871128 has 64 divisors (see below), whose sum is σ = 2160576000. Its totient is φ = 515797632.

The previous prime is 1090871101. The next prime is 1090871129. The reversal of 1090871128 is 8211780901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1090871129) 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 15 ways as a sum of consecutive naturals, for example, 1762003 + ... + 1762621.

It is an arithmetic number, because the mean of its divisors is an integer number (33759000).

Almost surely, 2^1090871128 is an apocalyptic number.

It is an amenable number.

1090871128 is a deficient number, since it is larger than the sum of its proper divisors (1069704872).

1090871128 is a wasteful number, since it uses less digits than its factorization.

1090871128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 824 (or 820 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 37.

The square root of 1090871128 is about 33028.3382567152. The cubic root of 1090871128 is about 1029.4165571198.

It can be divided in two parts, 109087 and 1128, that added together give a triangular number (110215 = T₄₆₉).

The spelling of 1090871128 in words is "one billion, ninety million, eight hundred seventy-one thousand, one hundred twenty-eight".