124215225 has 12 divisors (see below), whose sum is σ = 205369296. Its totient is φ = 66248080.

The previous prime is 124215197. The next prime is 124215239. The reversal of 124215225 is 522512421.

It is not a de Polignac number, because 124215225 - 2¹³ = 124207033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 124215195 and 124215204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 828027 + ... + 828176.

It is an arithmetic number, because the mean of its divisors is an integer number (17114108).

Almost surely, 2^124215225 is an apocalyptic number.

124215225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

124215225 is a deficient number, since it is larger than the sum of its proper divisors (81154071).

124215225 is a wasteful number, since it uses less digits than its factorization.

124215225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1656216 (or 1656211 counting only the distinct ones).

The product of its digits is 1600, while the sum is 24.

The square root of 124215225 is about 11145.1884237100. The cubic root of 124215225 is about 498.9514358972.

Adding to 124215225 its reverse (522512421), we get a palindrome (646727646).

The spelling of 124215225 in words is "one hundred twenty-four million, two hundred fifteen thousand, two hundred twenty-five".