1283112 has 48 divisors (see below), whose sum is σ = 3538080. Its totient is φ = 420000.

The previous prime is 1283111. The next prime is 1283119. The reversal of 1283112 is 2113821.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1283111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4987 + ... + 5237.

It is an arithmetic number, because the mean of its divisors is an integer number (73710).

2^1283112 is an apocalyptic number.

1283112 is a gapful number since it is divisible by the number (12) 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 1283112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1769040).

1283112 is an abundant number, since it is smaller than the sum of its proper divisors (2254968).

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

1283112 is a wasteful number, since it uses less digits than its factorization.

1283112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334 (or 327 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

The square root of 1283112 is about 1132.7453376642. The cubic root of 1283112 is about 108.6646258205.

Adding to 1283112 its reverse (2113821), we get a palindrome (3396933).

It can be divided in two parts, 128 and 3112, that added together give a triangular number (3240 = T₈₀).

The spelling of 1283112 in words is "one million, two hundred eighty-three thousand, one hundred twelve".