280124 has 12 divisors (see below), whose sum is σ = 528024. Its totient is φ = 129264.

The previous prime is 280121. The next prime is 280129. The reversal of 280124 is 421082.

280124 = 65² + 66² + ... + 103².

It is a plaindrome in base 7 and base 15.

It is a zygodrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2642 + ... + 2745.

It is an arithmetic number, because the mean of its divisors is an integer number (44002).

2²⁸⁰¹²⁴ is an apocalyptic number.

It is an amenable number.

280124 is a deficient number, since it is larger than the sum of its proper divisors (247900).

280124 is a wasteful number, since it uses less digits than its factorization.

280124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5404 (or 5402 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 280124 is about 529.2674182301. The cubic root of 280124 is about 65.4309822124.

It can be divided in two parts, 280 and 124, that added together give a palindrome (404).

The spelling of 280124 in words is "two hundred eighty thousand, one hundred twenty-four".