1134128947 has 16 divisors (see below), whose sum is σ = 1311710400. Its totient is φ = 960473088.

The previous prime is 1134128929. The next prime is 1134128959. The reversal of 1134128947 is 7498214311.

It is a cyclic number.

It is not a de Polignac number, because 1134128947 - 2¹⁵ = 1134096179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1134188947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 580929 + ... + 582877.

It is an arithmetic number, because the mean of its divisors is an integer number (81981900).

Almost surely, 2^1134128947 is an apocalyptic number.

1134128947 is a deficient number, since it is larger than the sum of its proper divisors (177581453).

1134128947 is an equidigital number, since it uses as much as digits as its factorization.

1134128947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2910.

The product of its digits is 48384, while the sum is 40.

The square root of 1134128947 is about 33676.8310118396. The cubic root of 1134128947 is about 1042.8475178239.

The spelling of 1134128947 in words is "one billion, one hundred thirty-four million, one hundred twenty-eight thousand, nine hundred forty-seven".