124715 has 4 divisors (see below), whose sum is σ = 149664. Its totient is φ = 99768.

The previous prime is 124703. The next prime is 124717. The reversal of 124715 is 517421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 517421 = 31 ⋅16691.

It is a cyclic number.

It is not a de Polignac number, because 124715 - 2⁴ = 124699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124717) 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 3 ways as a sum of consecutive naturals, for example, 12467 + ... + 12476.

It is an arithmetic number, because the mean of its divisors is an integer number (37416).

2¹²⁴⁷¹⁵ is an apocalyptic number.

124715 is a deficient number, since it is larger than the sum of its proper divisors (24949).

124715 is an equidigital number, since it uses as much as digits as its factorization.

124715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24948.

The product of its digits is 280, while the sum is 20.

The square root of 124715 is about 353.1501097267. The cubic root of 124715 is about 49.9619710834.

The spelling of 124715 in words is "one hundred twenty-four thousand, seven hundred fifteen".