124825 has 6 divisors (see below), whose sum is σ = 154814. Its totient is φ = 99840.

The previous prime is 124823. The next prime is 124847. The reversal of 124825 is 528421.

It can be written as a sum of positive squares in 3 ways, for example, as 3721 + 121104 = 61^2 + 348^2 .

It is not a de Polignac number, because 124825 - 2¹ = 124823 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 124796 and 124805.

It is not an unprimeable number, because it can be changed into a prime (124823) 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 5 ways as a sum of consecutive naturals, for example, 2472 + ... + 2521.

2¹²⁴⁸²⁵ is an apocalyptic number.

It is an amenable number.

124825 is a deficient number, since it is larger than the sum of its proper divisors (29989).

124825 is an equidigital number, since it uses as much as digits as its factorization.

124825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5003 (or 4998 counting only the distinct ones).

The product of its digits is 640, while the sum is 22.

The square root of 124825 is about 353.3058165386. The cubic root of 124825 is about 49.9766557693.

It can be divided in two parts, 124 and 825, that added together give a palindrome (949).

The spelling of 124825 in words is "one hundred twenty-four thousand, eight hundred twenty-five".