124045540 has 48 divisors (see below), whose sum is σ = 269482752. Its totient is φ = 47932416.

The previous prime is 124045529. The next prime is 124045561. The reversal of 124045540 is 45540421.

It is a happy number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 82677 + ... + 84163.

It is an arithmetic number, because the mean of its divisors is an integer number (5614224).

Almost surely, 2^124045540 is an apocalyptic number.

124045540 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 124045540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134741376).

124045540 is an abundant number, since it is smaller than the sum of its proper divisors (145437212).

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

124045540 is a wasteful number, since it uses less digits than its factorization.

124045540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1636 (or 1634 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 124045540 is about 11137.5733443152. The cubic root of 124045540 is about 498.7241337666.

Adding to 124045540 its reverse (45540421), we get a palindrome (169585961).

The spelling of 124045540 in words is "one hundred twenty-four million, forty-five thousand, five hundred forty".