1129791 has 16 divisors (see below), whose sum is σ = 1653120. Its totient is φ = 682080.

The previous prime is 1129789. The next prime is 1129819. The reversal of 1129791 is 1979211.

It is not a de Polignac number, because 1129791 - 2¹ = 1129789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1129741) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2056 + ... + 2546.

It is an arithmetic number, because the mean of its divisors is an integer number (103320).

2^1129791 is an apocalyptic number.

1129791 is a deficient number, since it is larger than the sum of its proper divisors (523329).

1129791 is a wasteful number, since it uses less digits than its factorization.

1129791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566.

The product of its digits is 1134, while the sum is 30.

The square root of 1129791 is about 1062.9162713968. The cubic root of 1129791 is about 104.1516217916.

The spelling of 1129791 in words is "one million, one hundred twenty-nine thousand, seven hundred ninety-one".