124420225 has 24 divisors (see below), whose sum is σ = 162168192. Its totient is φ = 94512000.

The previous prime is 124420223. The next prime is 124420259. The reversal of 124420225 is 522024421.

It is not a de Polignac number, because 124420225 - 2¹ = 124420223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 124420196 and 124420205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124420223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86109 + ... + 87541.

It is an arithmetic number, because the mean of its divisors is an integer number (6757008).

Almost surely, 2^124420225 is an apocalyptic number.

It is an amenable number.

124420225 is a deficient number, since it is larger than the sum of its proper divisors (37747967).

124420225 is a wasteful number, since it uses less digits than its factorization.

124420225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1617 (or 1612 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 124420225 is about 11154.3814261482. The cubic root of 124420225 is about 499.2257684164.

Adding to 124420225 its reverse (522024421), we get a palindrome (646444646).

The spelling of 124420225 in words is "one hundred twenty-four million, four hundred twenty thousand, two hundred twenty-five".