1129748 has 18 divisors (see below), whose sum is σ = 2042334. Its totient is φ = 546624.

The previous prime is 1129747. The next prime is 1129757. The reversal of 1129748 is 8479211.

It can be written as a sum of positive squares in 3 ways, for example, as 334084 + 795664 = 578^2 + 892^2 .

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

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 polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15440 + ... + 15512.

It is an arithmetic number, because the mean of its divisors is an integer number (113463).

2^1129748 is an apocalyptic number.

It is an amenable number.

1129748 is a deficient number, since it is larger than the sum of its proper divisors (912586).

1129748 is an equidigital number, since it uses as much as digits as its factorization.

1129748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203 (or 128 counting only the distinct ones).

The product of its digits is 4032, while the sum is 32.

The square root of 1129748 is about 1062.8960438350. The cubic root of 1129748 is about 104.1503004332.

The spelling of 1129748 in words is "one million, one hundred twenty-nine thousand, seven hundred forty-eight".