1129027305 has 32 divisors (see below), whose sum is σ = 2066400000. Its totient is φ = 515653632.

The previous prime is 1129027283. The next prime is 1129027321. The reversal of 1129027305 is 5037209211.

It is not a de Polignac number, because 1129027305 - 2¹⁰ = 1129026281 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 126841 + ... + 135449.

It is an arithmetic number, because the mean of its divisors is an integer number (64575000).

Almost surely, 2^1129027305 is an apocalyptic number.

1129027305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1129027305 is a deficient number, since it is larger than the sum of its proper divisors (937372695).

1129027305 is a wasteful number, since it uses less digits than its factorization.

1129027305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9873.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 1129027305 is about 33601.0015475730. The cubic root of 1129027305 is about 1041.2814901315.

The spelling of 1129027305 in words is "one billion, one hundred twenty-nine million, twenty-seven thousand, three hundred five".