1123524 has 48 divisors (see below), whose sum is σ = 2970240. Its totient is φ = 367200.

The previous prime is 1123517. The next prime is 1123531. The reversal of 1123524 is 4253211.

It is an interprime number because it is at equal distance from previous prime (1123517) and next prime (1123531).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a d-powerful number, because it can be written as 1 + 1 + 2⁸ + 3¹⁰ + 5⁶ + 2²⁰ + 4² .

It is a junction number, because it is equal to n+sod(n) for n = 1123497 and 1123506.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 10857 + ... + 10959.

It is an arithmetic number, because the mean of its divisors is an integer number (61880).

2^1123524 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 1123524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1485120).

1123524 is an abundant number, since it is smaller than the sum of its proper divisors (1846716).

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

1123524 is a wasteful number, since it uses less digits than its factorization.

1123524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217 (or 209 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 1123524 is about 1059.9641503372. The cubic root of 1123524 is about 103.9586867466.

Adding to 1123524 its reverse (4253211), we get a palindrome (5376735).

The spelling of 1123524 in words is "one million, one hundred twenty-three thousand, five hundred twenty-four".