1280124 has 42 divisors (see below), whose sum is σ = 3366440. Its totient is φ = 425736.

The previous prime is 1280119. The next prime is 1280129. The reversal of 1280124 is 4210821.

It is an interprime number because it is at equal distance from previous prime (1280119) and next prime (1280129).

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

It is a junction number, because it is equal to n+sod(n) for n = 1280097 and 1280106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1280129) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 2697 + ... + 3135.

2^1280124 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1280124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1683220).

1280124 is an abundant number, since it is smaller than the sum of its proper divisors (2086316).

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

1280124 is an equidigital number, since it uses as much as digits as its factorization.

1280124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461 (or 444 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 1280124 is about 1131.4256493469. The cubic root of 1280124 is about 108.5802106733.

Adding to 1280124 its reverse (4210821), we get a palindrome (5490945).

The spelling of 1280124 in words is "one million, two hundred eighty thousand, one hundred twenty-four".