1131072 has 56 divisors (see below), whose sum is σ = 3084576. Its totient is φ = 365568.

The previous prime is 1131049. The next prime is 1131077. The reversal of 1131072 is 2701311.

It is not an unprimeable number, because it can be changed into a prime (1131077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8188 + ... + 8324.

2^1131072 is an apocalyptic number.

1131072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1131072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1542288).

1131072 is an abundant number, since it is smaller than the sum of its proper divisors (1953504).

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

1131072 is a wasteful number, since it uses less digits than its factorization.

1131072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195 (or 185 counting only the distinct ones).

The product of its (nonzero) digits is 42, while the sum is 15.

The square root of 1131072 is about 1063.5186881292. The cubic root of 1131072 is about 104.1909706135.

Adding to 1131072 its reverse (2701311), we get a palindrome (3832383).

The spelling of 1131072 in words is "one million, one hundred thirty-one thousand, seventy-two".