1123283285 has 8 divisors (see below), whose sum is σ = 1355388216. Its totient is φ = 893661120.

The previous prime is 1123283267. The next prime is 1123283299. The reversal of 1123283285 is 5823823211.

It can be written as a sum of positive squares in 4 ways, for example, as 3845521 + 1119437764 = 1961^2 + 33458^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1123283285 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 619694 + ... + 621503.

It is an arithmetic number, because the mean of its divisors is an integer number (169423527).

Almost surely, 2^1123283285 is an apocalyptic number.

It is an amenable number.

1123283285 is a deficient number, since it is larger than the sum of its proper divisors (232104931).

1123283285 is a wasteful number, since it uses less digits than its factorization.

1123283285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241383.

The product of its digits is 23040, while the sum is 35.

The square root of 1123283285 is about 33515.4186159147. The cubic root of 1123283285 is about 1039.5126183396.

The spelling of 1123283285 in words is "one billion, one hundred twenty-three million, two hundred eighty-three thousand, two hundred eighty-five".