124041540 has 144 divisors (see below), whose sum is σ = 417360384. Its totient is φ = 27417600.

The previous prime is 124041529. The next prime is 124041551. The reversal of 124041540 is 45140421.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (124041529) and next prime (124041551).

It is a Harshad number since it is a multiple of its sum of digits (21).

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 47 ways as a sum of consecutive naturals, for example, 90460 + ... + 91820.

It is an arithmetic number, because the mean of its divisors is an integer number (2898336).

Almost surely, 2^124041540 is an apocalyptic number.

124041540 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 124041540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208680192).

124041540 is an abundant number, since it is smaller than the sum of its proper divisors (293318844).

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

124041540 is a wasteful number, since it uses less digits than its factorization.

124041540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1418 (or 1409 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 124041540 is about 11137.3937705372. The cubic root of 124041540 is about 498.7187730526.

Adding to 124041540 its reverse (45140421), we get a palindrome (169181961).

The spelling of 124041540 in words is "one hundred twenty-four million, forty-one thousand, five hundred forty".