1129225 has 12 divisors (see below), whose sum is σ = 1483164. Its totient is φ = 849920.

The previous prime is 1129217. The next prime is 1129229. The reversal of 1129225 is 5229211.

It can be written as a sum of positive squares in 6 ways, for example, as 7744 + 1121481 = 88^2 + 1059^2 .

It is not a de Polignac number, because 1129225 - 2³ = 1129217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1129196 and 1129205.

It is not an unprimeable number, because it can be changed into a prime (1129229) 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, 904 + ... + 1753.

It is an arithmetic number, because the mean of its divisors is an integer number (123597).

2^1129225 is an apocalyptic number.

It is an amenable number.

1129225 is a deficient number, since it is larger than the sum of its proper divisors (353939).

1129225 is a wasteful number, since it uses less digits than its factorization.

1129225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2684 (or 2679 counting only the distinct ones).

The product of its digits is 360, while the sum is 22.

The square root of 1129225 is about 1062.6499894133. The cubic root of 1129225 is about 104.1342263427.

The spelling of 1129225 in words is "one million, one hundred twenty-nine thousand, two hundred twenty-five".