124019712 has 66 divisors (see below), whose sum is σ = 358130838. Its totient is φ = 41336832.

The previous prime is 124019683. The next prime is 124019713. The reversal of 124019712 is 217910421.

It can be written as a sum of positive squares in only one way, i.e., 124010496 + 9216 = 11136^2 + 96^2 .

It is not an unprimeable number, because it can be changed into a prime (124019713) 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, 2488 + ... + 15944.

Almost surely, 2^124019712 is an apocalyptic number.

124019712 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 124019712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179065419).

124019712 is an abundant number, since it is smaller than the sum of its proper divisors (234111126).

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

124019712 is a wasteful number, since it uses less digits than its factorization.

124019712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13483 (or 13462 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 124019712 is about 11136.4137854158. The cubic root of 124019712 is about 498.6895176059.

The spelling of 124019712 in words is "one hundred twenty-four million, nineteen thousand, seven hundred twelve".