124045 has 4 divisors (see below), whose sum is σ = 148860. Its totient is φ = 99232.

The previous prime is 124021. The next prime is 124067. The reversal of 124045 is 540421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 79524 + 44521 = 282^2 + 211^2 .

It is a cyclic number.

It is not a de Polignac number, because 124045 - 2¹¹ = 121997 is a prime.

It is a plaindrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12400 + ... + 12409.

It is an arithmetic number, because the mean of its divisors is an integer number (37215).

2¹²⁴⁰⁴⁵ is an apocalyptic number.

It is an amenable number.

124045 is a deficient number, since it is larger than the sum of its proper divisors (24815).

124045 is an equidigital number, since it uses as much as digits as its factorization.

124045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24814.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 124045 is about 352.2002271436. The cubic root of 124045 is about 49.8723410077.

Adding to 124045 its reverse (540421), we get a palindrome (664466).

The spelling of 124045 in words is "one hundred twenty-four thousand, forty-five".