124513225 has 24 divisors (see below), whose sum is σ = 157891680. Its totient is φ = 97384320.

The previous prime is 124513223. The next prime is 124513229. The reversal of 124513225 is 522315421.

It is not a de Polignac number, because 124513225 - 2¹ = 124513223 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 124513225.

It is not an unprimeable number, because it can be changed into a prime (124513223) 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, 237814 + ... + 238336.

It is an arithmetic number, because the mean of its divisors is an integer number (6578820).

Almost surely, 2^124513225 is an apocalyptic number.

It is an amenable number.

124513225 is a deficient number, since it is larger than the sum of its proper divisors (33378455).

124513225 is a wasteful number, since it uses less digits than its factorization.

124513225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729 (or 724 counting only the distinct ones).

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

The square root of 124513225 is about 11158.5494128941. The cubic root of 124513225 is about 499.3501223507.

Adding to 124513225 its reverse (522315421), we get a palindrome (646828646).

The spelling of 124513225 in words is "one hundred twenty-four million, five hundred thirteen thousand, two hundred twenty-five".