124140220 has 24 divisors (see below), whose sum is σ = 260920800. Its totient is φ = 49612992.

The previous prime is 124140199. The next prime is 124140283. The reversal of 124140220 is 22041421.

It is a junction number, because it is equal to n+sod(n) for n = 124140194 and 124140203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31521 + ... + 35239.

It is an arithmetic number, because the mean of its divisors is an integer number (10871700).

Almost surely, 2^124140220 is an apocalyptic number.

124140220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124140220 is an abundant number, since it is smaller than the sum of its proper divisors (136780580).

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

124140220 is a wasteful number, since it uses less digits than its factorization.

124140220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5397 (or 5395 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 124140220 is about 11141.8230106208. The cubic root of 124140220 is about 498.8509882332.

Adding to 124140220 its reverse (22041421), we get a palindrome (146181641).

The spelling of 124140220 in words is "one hundred twenty-four million, one hundred forty thousand, two hundred twenty".