124724 has 6 divisors (see below), whose sum is σ = 218274. Its totient is φ = 62360.

The previous prime is 124721. The next prime is 124739. The reversal of 124724 is 427421.

It can be written as a sum of positive squares in only one way, i.e., 71824 + 52900 = 268^2 + 230^2 .

It is a junction number, because it is equal to n+sod(n) for n = 124696 and 124705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15587 + ... + 15594.

It is an arithmetic number, because the mean of its divisors is an integer number (36379).

2¹²⁴⁷²⁴ is an apocalyptic number.

It is an amenable number.

124724 is a deficient number, since it is larger than the sum of its proper divisors (93550).

124724 is a wasteful number, since it uses less digits than its factorization.

124724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31185 (or 31183 counting only the distinct ones).

The product of its digits is 448, while the sum is 20.

The square root of 124724 is about 353.1628519536. The cubic root of 124724 is about 49.9631728819.

It can be divided in two parts, 124 and 724, that added together give a palindrome (848).

The spelling of 124724 in words is "one hundred twenty-four thousand, seven hundred twenty-four", and thus it is an iban number.