1123164260 has 12 divisors (see below), whose sum is σ = 2358644988. Its totient is φ = 449265696.

The previous prime is 1123164241. The next prime is 1123164281. The reversal of 1123164260 is 624613211.

It can be written as a sum of positive squares in 2 ways, for example, as 451732516 + 671431744 = 21254^2 + 25912^2 .

It is a super-2 number, since 2×1123164260² = 2522995909882695200, which contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 28079087 + ... + 28079126.

It is an arithmetic number, because the mean of its divisors is an integer number (196553749).

Almost surely, 2^1123164260 is an apocalyptic number.

1123164260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1123164260 is an abundant number, since it is smaller than the sum of its proper divisors (1235480728).

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

1123164260 is a wasteful number, since it uses less digits than its factorization.

1123164260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56158222 (or 56158220 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 1123164260 is about 33513.6428936038. The cubic root of 1123164260 is about 1039.4759008699.

Adding to 1123164260 its reverse (624613211), we get a palindrome (1747777471).

The spelling of 1123164260 in words is "one billion, one hundred twenty-three million, one hundred sixty-four thousand, two hundred sixty".