13530544441 has 2 divisors, whose sum is σ = 13530544442. Its totient is φ = 13530544440.

The previous prime is 13530544429. The next prime is 13530544457. The reversal of 13530544441 is 14444503531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8360359225 + 5170185216 = 91435^2 + 71904^2 .

It is an emirp because it is prime and its reverse (14444503531) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13530544441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13530544397 and 13530544406.

It is not a weakly prime, because it can be changed into another prime (13530544141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6765272220 + 6765272221.

It is an arithmetic number, because the mean of its divisors is an integer number (6765272221).

Almost surely, 2^13530544441 is an apocalyptic number.

It is an amenable number.

13530544441 is a deficient number, since it is larger than the sum of its proper divisors (1).

13530544441 is an equidigital number, since it uses as much as digits as its factorization.

13530544441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57600, while the sum is 34.

The spelling of 13530544441 in words is "thirteen billion, five hundred thirty million, five hundred forty-four thousand, four hundred forty-one".