124125540 has 192 divisors, whose sum is σ = 440875008. Its totient is φ = 25344000.

The previous prime is 124125527. The next prime is 124125553. The reversal of 124125540 is 45521421.

It is an interprime number because it is at equal distance from previous prime (124125527) and next prime (124125553).

It is a self number, because there is not a number n which added to its sum of digits gives 124125540.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 309340 + ... + 309740.

It is an arithmetic number, because the mean of its divisors is an integer number (2296224).

Almost surely, 2^124125540 is an apocalyptic number.

124125540 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 124125540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220437504).

124125540 is an abundant number, since it is smaller than the sum of its proper divisors (316749468).

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

124125540 is a wasteful number, since it uses less digits than its factorization.

124125540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498 (or 496 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 124125540 is about 11141.1642120561. The cubic root of 124125540 is about 498.8313238537.

Adding to 124125540 its reverse (45521421), we get a palindrome (169646961).

The spelling of 124125540 in words is "one hundred twenty-four million, one hundred twenty-five thousand, five hundred forty".