1126115285 has 4 divisors (see below), whose sum is σ = 1351338348. Its totient is φ = 900892224.

The previous prime is 1126115281. The next prime is 1126115381. The reversal of 1126115285 is 5825116211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 881317969 + 244797316 = 29687^2 + 15646^2 .

It is a cyclic number.

It is not a de Polignac number, because 1126115285 - 2² = 1126115281 is a prime.

It is a super-2 number, since 2×1126115285² = 2536271270221262450, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1126115281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112611524 + ... + 112611533.

It is an arithmetic number, because the mean of its divisors is an integer number (337834587).

Almost surely, 2^1126115285 is an apocalyptic number.

It is an amenable number.

1126115285 is a deficient number, since it is larger than the sum of its proper divisors (225223063).

1126115285 is an equidigital number, since it uses as much as digits as its factorization.

1126115285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225223062.

The product of its digits is 4800, while the sum is 32.

The square root of 1126115285 is about 33557.6412311712. The cubic root of 1126115285 is about 1040.3854848728.

The spelling of 1126115285 in words is "one billion, one hundred twenty-six million, one hundred fifteen thousand, two hundred eighty-five".