124124820 has 96 divisors (see below), whose sum is σ = 373258368. Its totient is φ = 30707712.

The previous prime is 124124801. The next prime is 124124821. The reversal of 124124820 is 28421421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124124821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73627 + ... + 75293.

It is an arithmetic number, because the mean of its divisors is an integer number (3888108).

Almost surely, 2^124124820 is an apocalyptic number.

124124820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 124124820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186629184).

124124820 is an abundant number, since it is smaller than the sum of its proper divisors (249133548).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

124124820 is a wasteful number, since it uses less digits than its factorization.

124124820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1769 (or 1767 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 124124820 is about 11141.1318994077. The cubic root of 124124820 is about 498.8303593483.

The spelling of 124124820 in words is "one hundred twenty-four million, one hundred twenty-four thousand, eight hundred twenty".