1131129 has 12 divisors (see below), whose sum is σ = 1730196. Its totient is φ = 709632.

The previous prime is 1131121. The next prime is 1131131. The reversal of 1131129 is 9211311.

It can be written as a sum of positive squares in 2 ways, for example, as 522729 + 608400 = 723^2 + 780^2 .

It is not a de Polignac number, because 1131129 - 2³ = 1131121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1131121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3544 + ... + 3849.

It is an arithmetic number, because the mean of its divisors is an integer number (144183).

2^1131129 is an apocalyptic number.

It is an amenable number.

1131129 is a deficient number, since it is larger than the sum of its proper divisors (599067).

1131129 is a wasteful number, since it uses less digits than its factorization.

1131129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7416 (or 7413 counting only the distinct ones).

The product of its digits is 54, while the sum is 18.

The square root of 1131129 is about 1063.5454856281. The cubic root of 1131129 is about 104.1927208072.

The spelling of 1131129 in words is "one million, one hundred thirty-one thousand, one hundred twenty-nine".