1129105 has 4 divisors (see below), whose sum is σ = 1354932. Its totient is φ = 903280.

The previous prime is 1129103. The next prime is 1129109. The reversal of 1129105 is 5019211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5019211 = 19 ⋅264169.

It can be written as a sum of positive squares in 2 ways, for example, as 876096 + 253009 = 936^2 + 503^2 .

It is not a de Polignac number, because 1129105 - 2¹ = 1129103 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1129103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112906 + ... + 112915.

It is an arithmetic number, because the mean of its divisors is an integer number (338733).

2^1129105 is an apocalyptic number.

It is an amenable number.

1129105 is a deficient number, since it is larger than the sum of its proper divisors (225827).

1129105 is an equidigital number, since it uses as much as digits as its factorization.

1129105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225826.

The product of its (nonzero) digits is 90, while the sum is 19.

The square root of 1129105 is about 1062.5935252955. The cubic root of 1129105 is about 104.1305375149.

The spelling of 1129105 in words is "one million, one hundred twenty-nine thousand, one hundred five".