1123536 has 40 divisors (see below), whose sum is σ = 2946240. Its totient is φ = 368896.

The previous prime is 1123531. The next prime is 1123541. The reversal of 1123536 is 6353211.

It is an interprime number because it is at equal distance from previous prime (1123531) and next prime (1123541).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4141 + ... + 4403.

It is an arithmetic number, because the mean of its divisors is an integer number (73656).

2^1123536 is an apocalyptic number.

1123536 is a gapful number since it is divisible by the number (16) 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 1123536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1473120).

1123536 is an abundant number, since it is smaller than the sum of its proper divisors (1822704).

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

1123536 is a wasteful number, since it uses less digits than its factorization.

1123536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363 (or 357 counting only the distinct ones).

The product of its digits is 540, while the sum is 21.

The square root of 1123536 is about 1059.9698108909. The cubic root of 1123536 is about 103.9590568618.

Adding to 1123536 its reverse (6353211), we get a palindrome (7476747).

The spelling of 1123536 in words is "one million, one hundred twenty-three thousand, five hundred thirty-six".