1282120 has 64 divisors (see below), whose sum is σ = 3484800. Its totient is φ = 414720.

The previous prime is 1282117. The next prime is 1282121. The reversal of 1282120 is 212821.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1282094 and 1282103.

It is not an unprimeable number, because it can be changed into a prime (1282121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5200 + ... + 5440.

It is an arithmetic number, because the mean of its divisors is an integer number (54450).

2^1282120 is an apocalyptic number.

1282120 is a gapful number since it is divisible by the number (10) 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 1282120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1742400).

1282120 is an abundant number, since it is smaller than the sum of its proper divisors (2202680).

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

1282120 is a wasteful number, since it uses less digits than its factorization.

1282120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278 (or 274 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1282120 is about 1132.3073787625. The cubic root of 1282120 is about 108.6366149895.

Adding to 1282120 its reverse (212821), we get a palindrome (1494941).

The spelling of 1282120 in words is "one million, two hundred eighty-two thousand, one hundred twenty".