1123166256 has 40 divisors (see below), whose sum is σ = 2904486720. Its totient is φ = 374005056.

The previous prime is 1123166243. The next prime is 1123166257. The reversal of 1123166256 is 6526613211.

It is not an unprimeable number, because it can be changed into a prime (1123166257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37431 + ... + 60393.

It is an arithmetic number, because the mean of its divisors is an integer number (72612168).

Almost surely, 2^1123166256 is an apocalyptic number.

1123166256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1123166256 is an abundant number, since it is smaller than the sum of its proper divisors (1781320464).

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

1123166256 is a wasteful number, since it uses less digits than its factorization.

1123166256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23993 (or 23987 counting only the distinct ones).

The product of its digits is 12960, while the sum is 33.

The square root of 1123166256 is about 33513.6726725079. The cubic root of 1123166256 is about 1039.4765166281.

Adding to 1123166256 its reverse (6526613211), we get a palindrome (7649779467).

The spelling of 1123166256 in words is "one billion, one hundred twenty-three million, one hundred sixty-six thousand, two hundred fifty-six".