1129839 has 8 divisors (see below), whose sum is σ = 1518000. Its totient is φ = 747456.

The previous prime is 1129831. The next prime is 1129841. The reversal of 1129839 is 9389211.

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

It is not a de Polignac number, because 1129839 - 2³ = 1129831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1129831) 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 7 ways as a sum of consecutive naturals, for example, 964 + ... + 1785.

It is an arithmetic number, because the mean of its divisors is an integer number (189750).

2^1129839 is an apocalyptic number.

1129839 is a deficient number, since it is larger than the sum of its proper divisors (388161).

1129839 is a wasteful number, since it uses less digits than its factorization.

1129839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2889.

The product of its digits is 3888, while the sum is 33.

The square root of 1129839 is about 1062.9388505460. The cubic root of 1129839 is about 104.1530967568.

The spelling of 1129839 in words is "one million, one hundred twenty-nine thousand, eight hundred thirty-nine".