1096985091 has 16 divisors (see below), whose sum is σ = 1473696000. Its totient is φ = 725813088.

The previous prime is 1096985063. The next prime is 1096985101. The reversal of 1096985091 is 1905896901.

It is not a de Polignac number, because 1096985091 - 2⁷ = 1096984963 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1096985091.

It is not an unprimeable number, because it can be changed into a prime (1096986091) 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 in 15 ways as a sum of consecutive naturals, for example, 429085 + ... + 431633.

It is an arithmetic number, because the mean of its divisors is an integer number (92106000).

Almost surely, 2^1096985091 is an apocalyptic number.

1096985091 is a deficient number, since it is larger than the sum of its proper divisors (376710909).

1096985091 is a wasteful number, since it uses less digits than its factorization.

1096985091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3578.

The product of its (nonzero) digits is 174960, while the sum is 48.

The square root of 1096985091 is about 33120.7652538404. The cubic root of 1096985091 is about 1031.3361523323.

The spelling of 1096985091 in words is "one billion, ninety-six million, nine hundred eighty-five thousand, ninety-one".