1129548 has 72 divisors (see below), whose sum is σ = 3274992. Its totient is φ = 301056.

The previous prime is 1129523. The next prime is 1129559. The reversal of 1129548 is 8459211.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9940 + ... + 10052.

It is an arithmetic number, because the mean of its divisors is an integer number (45486).

2^1129548 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1129548, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1637496).

1129548 is an abundant number, since it is smaller than the sum of its proper divisors (2145444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1129548 is a wasteful number, since it uses less digits than its factorization.

1129548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151 (or 142 counting only the distinct ones).

The product of its digits is 2880, while the sum is 30.

The square root of 1129548 is about 1062.8019570927. The cubic root of 1129548 is about 104.1441541394.

The spelling of 1129548 in words is "one million, one hundred twenty-nine thousand, five hundred forty-eight".