124428523 has 4 divisors (see below), whose sum is σ = 124821360. Its totient is φ = 124035688.

The previous prime is 124428509. The next prime is 124428529. The reversal of 124428523 is 325824421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 325824421 = 13 ⋅25063417.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124428523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124428529) 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, 195943 + ... + 196576.

It is an arithmetic number, because the mean of its divisors is an integer number (31205340).

Almost surely, 2^124428523 is an apocalyptic number.

124428523 is a deficient number, since it is larger than the sum of its proper divisors (392837).

124428523 is an equidigital number, since it uses as much as digits as its factorization.

124428523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392836.

The product of its digits is 15360, while the sum is 31.

The square root of 124428523 is about 11154.7533814065. The cubic root of 124428523 is about 499.2368665138.

The spelling of 124428523 in words is "one hundred twenty-four million, four hundred twenty-eight thousand, five hundred twenty-three".