124320812 has 48 divisors (see below), whose sum is σ = 272982528. Its totient is φ = 48126720.

The previous prime is 124320811. The next prime is 124320821. The reversal of 124320812 is 218023421.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (124320811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50228 + ... + 52644.

It is an arithmetic number, because the mean of its divisors is an integer number (5687136).

Almost surely, 2^124320812 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 124320812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136491264).

124320812 is an abundant number, since it is smaller than the sum of its proper divisors (148661716).

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

124320812 is a wasteful number, since it uses less digits than its factorization.

124320812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2606 (or 2604 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 124320812 is about 11149.9243046758. The cubic root of 124320812 is about 499.0927708662.

The spelling of 124320812 in words is "one hundred twenty-four million, three hundred twenty thousand, eight hundred twelve".