1129265288 has 20 divisors (see below), whose sum is σ = 2136977715. Its totient is φ = 559452528.

The previous prime is 1129265279. The next prime is 1129265297. The reversal of 1129265288 is 8825629211.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is an interprime number because it is at equal distance from previous prime (1129265279) and next prime (1129265297).

It can be written as a sum of positive squares in 3 ways, for example, as 973564804 + 155700484 = 31202^2 + 12478^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=23762.

It is a Duffinian number.

It is an unprimeable number.

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 4 ways as a sum of consecutive naturals, for example, 10360178 + ... + 10360286.

Almost surely, 2^1129265288 is an apocalyptic number.

It is an amenable number.

1129265288 is a deficient number, since it is larger than the sum of its proper divisors (1007712427).

1129265288 is an frugal number, since it uses more digits than its factorization.

1129265288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442 (or 111 counting only the distinct ones).

The product of its digits is 138240, while the sum is 44.

The square root of 1129265288 is about 33604.5426691095. The cubic root of 1129265288 is about 1041.3546474656.

The spelling of 1129265288 in words is "one billion, one hundred twenty-nine million, two hundred sixty-five thousand, two hundred eighty-eight".