124428519 has 6 divisors (see below), whose sum is σ = 179730096. Its totient is φ = 82952340.

The previous prime is 124428509. The next prime is 124428529. The reversal of 124428519 is 915824421.

It is an interprime number because it is at equal distance from previous prime (124428509) and next prime (124428529).

It is not a de Polignac number, because 124428519 - 2⁴ = 124428503 is a prime.

It is a super-2 number, since 2×124428519² = 30964912681066722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124428509) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6912687 + ... + 6912704.

It is an arithmetic number, because the mean of its divisors is an integer number (29955016).

Almost surely, 2^124428519 is an apocalyptic number.

124428519 is a deficient number, since it is larger than the sum of its proper divisors (55301577).

124428519 is a wasteful number, since it uses less digits than its factorization.

124428519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13825397 (or 13825394 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 124428519 is about 11154.7532021107. The cubic root of 124428519 is about 499.2368611642.

The spelling of 124428519 in words is "one hundred twenty-four million, four hundred twenty-eight thousand, five hundred nineteen".