1099012089 has 16 divisors (see below), whose sum is σ = 1685356928. Its totient is φ = 624004992.

The previous prime is 1099012027. The next prime is 1099012091. The reversal of 1099012089 is 9802109901.

It is a happy number.

It is not a de Polignac number, because 1099012089 - 2⁹ = 1099011577 is a prime.

It is a Duffinian number.

1099012089 is a modest number, since divided by 12089 gives 1099 as remainder.

It is not an unprimeable number, because it can be changed into a prime (1099012009) 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, 163372 + ... + 169965.

It is an arithmetic number, because the mean of its divisors is an integer number (105334808).

Almost surely, 2^1099012089 is an apocalyptic number.

It is an amenable number.

1099012089 is a deficient number, since it is larger than the sum of its proper divisors (586344839).

1099012089 is a wasteful number, since it uses less digits than its factorization.

1099012089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333504.

The product of its (nonzero) digits is 11664, while the sum is 39.

The square root of 1099012089 is about 33151.3512394291. The cubic root of 1099012089 is about 1031.9709923266.

The spelling of 1099012089 in words is "one billion, ninety-nine million, twelve thousand, eighty-nine".