124780 has 24 divisors (see below), whose sum is σ = 278208. Its totient is φ = 46848.

The previous prime is 124777. The next prime is 124781. The reversal of 124780 is 87421.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (124781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157 + ... + 523.

It is an arithmetic number, because the mean of its divisors is an integer number (11592).

2¹²⁴⁷⁸⁰ is an apocalyptic number.

124780 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 124780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139104).

124780 is an abundant number, since it is smaller than the sum of its proper divisors (153428).

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

124780 is a wasteful number, since it uses less digits than its factorization.

124780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393 (or 391 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 124780 is about 353.2421265931. The cubic root of 124780 is about 49.9706494409.

The spelling of 124780 in words is "one hundred twenty-four thousand, seven hundred eighty".