124315225 has 6 divisors (see below), whose sum is σ = 154150910. Its totient is φ = 99452160.

The previous prime is 124315223. The next prime is 124315229. The reversal of 124315225 is 522513421.

It can be written as a sum of positive squares in 3 ways, for example, as 20214016 + 104101209 = 4496^2 + 10203^2 .

It is not a de Polignac number, because 124315225 - 2¹ = 124315223 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 4972609 = 124315225 / (1 + 2 + 4 + 3 + 1 + 5 + 2 + 2 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 124315225.

It is not an unprimeable number, because it can be changed into a prime (124315223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2486280 + ... + 2486329.

Almost surely, 2^124315225 is an apocalyptic number.

It is an amenable number.

124315225 is a deficient number, since it is larger than the sum of its proper divisors (29835685).

124315225 is an equidigital number, since it uses as much as digits as its factorization.

124315225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4972619 (or 4972614 counting only the distinct ones).

The product of its digits is 2400, while the sum is 25.

The square root of 124315225 is about 11149.6737620434. The cubic root of 124315225 is about 499.0852943141.

Adding to 124315225 its reverse (522513421), we get a palindrome (646828646).

The spelling of 124315225 in words is "one hundred twenty-four million, three hundred fifteen thousand, two hundred twenty-five".