1129011089 has 8 divisors (see below), whose sum is σ = 1198411848. Its totient is φ = 1059942400.

The previous prime is 1129011061. The next prime is 1129011113. The reversal of 1129011089 is 9801109211.

It can be written as a sum of positive squares in 4 ways, for example, as 944947600 + 184063489 = 30740^2 + 13567^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1129011089 - 2¹² = 1129006993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1129011029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75992 + ... + 89625.

It is an arithmetic number, because the mean of its divisors is an integer number (149801481).

Almost surely, 2^1129011089 is an apocalyptic number.

It is an amenable number.

1129011089 is a deficient number, since it is larger than the sum of its proper divisors (69400759).

1129011089 is a wasteful number, since it uses less digits than its factorization.

1129011089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166035.

The product of its (nonzero) digits is 1296, while the sum is 32.

The square root of 1129011089 is about 33600.7602443754. The cubic root of 1129011089 is about 1041.2765048663.

The spelling of 1129011089 in words is "one billion, one hundred twenty-nine million, eleven thousand, eighty-nine".