124131540 has 96 divisors (see below), whose sum is σ = 383112576. Its totient is φ = 29836800.

The previous prime is 124131493. The next prime is 124131547. The reversal of 124131540 is 45131421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124131547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31690 + ... + 35390.

It is an arithmetic number, because the mean of its divisors is an integer number (3990756).

Almost surely, 2^124131540 is an apocalyptic number.

124131540 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 124131540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191556288).

124131540 is an abundant number, since it is smaller than the sum of its proper divisors (258981036).

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

124131540 is a wasteful number, since it uses less digits than its factorization.

124131540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3769 (or 3767 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 124131540 is about 11141.4334804818. The cubic root of 124131540 is about 498.8393612534.

Adding to 124131540 its reverse (45131421), we get a palindrome (169262961).

The spelling of 124131540 in words is "one hundred twenty-four million, one hundred thirty-one thousand, five hundred forty".