124420144225 has 48 divisors (see below), whose sum is σ = 168589209600. Its totient is φ = 90539769600.

The previous prime is 124420144213. The next prime is 124420144231. The reversal of 124420144225 is 522441024421.

It is not a de Polignac number, because 124420144225 - 2¹³ = 124420136033 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6139860 + ... + 6160090.

It is an arithmetic number, because the mean of its divisors is an integer number (3512275200).

Almost surely, 2^124420144225 is an apocalyptic number.

It is an amenable number.

124420144225 is a deficient number, since it is larger than the sum of its proper divisors (44169065375).

124420144225 is a wasteful number, since it uses less digits than its factorization.

124420144225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20530 (or 20525 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 31.

Adding to 124420144225 its reverse (522441024421), we get a palindrome (646861168646).

The spelling of 124420144225 in words is "one hundred twenty-four billion, four hundred twenty million, one hundred forty-four thousand, two hundred twenty-five".