13544120125 has 32 divisors (see below), whose sum is σ = 17682818400. Its totient is φ = 10343872000.

The previous prime is 13544120119. The next prime is 13544120153. The reversal of 13544120125 is 52102144531.

It can be written as a sum of positive squares in 16 ways, for example, as 13412650969 + 131469156 = 115813^2 + 11466^2 .

It is not a de Polignac number, because 13544120125 - 2²¹ = 13542022973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13544120093 and 13544120102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 301635 + ... + 343615.

It is an arithmetic number, because the mean of its divisors is an integer number (552588075).

Almost surely, 2^13544120125 is an apocalyptic number.

It is an amenable number.

13544120125 is a deficient number, since it is larger than the sum of its proper divisors (4138698275).

13544120125 is an equidigital number, since it uses as much as digits as its factorization.

13544120125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42114 (or 42104 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 13544120125 its reverse (52102144531), we get a palindrome (65646264656).

The spelling of 13544120125 in words is "thirteen billion, five hundred forty-four million, one hundred twenty thousand, one hundred twenty-five".