1123512 has 48 divisors (see below), whose sum is σ = 3052440. Its totient is φ = 344448.

The previous prime is 1123511. The next prime is 1123517. The reversal of 1123512 is 2153211.

It is a super-3 number, since 3×1123512³ = 4254557533324061184, which contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1123491 and 1123500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3918 + ... + 4194.

2^1123512 is an apocalyptic number.

1123512 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 1123512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1526220).

1123512 is an abundant number, since it is smaller than the sum of its proper divisors (1928928).

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

1123512 is a wasteful number, since it uses less digits than its factorization.

1123512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312 (or 295 counting only the distinct ones).

The product of its digits is 60, while the sum is 15.

The square root of 1123512 is about 1059.9584897533. The cubic root of 1123512 is about 103.9583166288.

Adding to 1123512 its reverse (2153211), we get a palindrome (3276723).

The spelling of 1123512 in words is "one million, one hundred twenty-three thousand, five hundred twelve".