124549 has 4 divisors (see below), whose sum is σ = 126720. Its totient is φ = 122380.

The previous prime is 124543. The next prime is 124561. The reversal of 124549 is 945421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 124549 - 2³ = 124541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124541) 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, 997 + ... + 1114.

It is an arithmetic number, because the mean of its divisors is an integer number (31680).

2¹²⁴⁵⁴⁹ is an apocalyptic number.

It is an amenable number.

124549 is a deficient number, since it is larger than the sum of its proper divisors (2171).

124549 is an equidigital number, since it uses as much as digits as its factorization.

124549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2170.

The product of its digits is 1440, while the sum is 25.

The square root of 124549 is about 352.9150039315. The cubic root of 124549 is about 49.9397942010.

The spelling of 124549 in words is "one hundred twenty-four thousand, five hundred forty-nine".