1123064256 has 112 divisors (see below), whose sum is σ = 3075127200. Its totient is φ = 361451520.

The previous prime is 1123064227. The next prime is 1123064279. The reversal of 1123064256 is 6524603211.

It is a super-4 number, since 4×1123064256⁴ (a number of 37 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1057966 + ... + 1059026.

Almost surely, 2^1123064256 is an apocalyptic number.

1123064256 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 1123064256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1537563600).

1123064256 is an abundant number, since it is smaller than the sum of its proper divisors (1952062944).

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

1123064256 is a wasteful number, since it uses less digits than its factorization.

1123064256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262 (or 1252 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 1123064256 is about 33512.1508709901. The cubic root of 1123064256 is about 1039.4450490948.

Adding to 1123064256 its reverse (6524603211), we get a palindrome (7647667467).

The spelling of 1123064256 in words is "one billion, one hundred twenty-three million, sixty-four thousand, two hundred fifty-six".