124243812 has 216 divisors, whose sum is σ = 420769440. Its totient is φ = 30481920.

The previous prime is 124243811. The next prime is 124243841. The reversal of 124243812 is 218342421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124243811) 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 71 ways as a sum of consecutive naturals, for example, 368508 + ... + 368844.

Almost surely, 2^124243812 is an apocalyptic number.

124243812 is a gapful number since it is divisible by the number (12) 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 124243812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210384720).

124243812 is an abundant number, since it is smaller than the sum of its proper divisors (296525628).

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

124243812 is a wasteful number, since it uses less digits than its factorization.

124243812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391 (or 379 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

The square root of 124243812 is about 11146.4708316130. The cubic root of 124243812 is about 498.9897093338.

It can be divided in two parts, 1242 and 43812, that added together give a palindrome (45054).

The spelling of 124243812 in words is "one hundred twenty-four million, two hundred forty-three thousand, eight hundred twelve".