13530434125 has 16 divisors (see below), whose sum is σ = 18184905648. Its totient is φ = 9991704000.

The previous prime is 13530434117. The next prime is 13530434143. The reversal of 13530434125 is 52143403531.

It can be written as a sum of positive squares in 8 ways, for example, as 8832428361 + 4698005764 = 93981^2 + 68542^2 .

It is not a de Polignac number, because 13530434125 - 2³ = 13530434117 is a prime.

It is a super-2 number, since 2×13530434125² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4161586 + ... + 4164835.

It is an arithmetic number, because the mean of its divisors is an integer number (1136556603).

Almost surely, 2^13530434125 is an apocalyptic number.

It is an amenable number.

13530434125 is a deficient number, since it is larger than the sum of its proper divisors (4654471523).

13530434125 is an equidigital number, since it uses as much as digits as its factorization.

13530434125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8326449 (or 8326439 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 13530434125 its reverse (52143403531), we get a palindrome (65673837656).

The spelling of 13530434125 in words is "thirteen billion, five hundred thirty million, four hundred thirty-four thousand, one hundred twenty-five".