13453534481 has 2 divisors, whose sum is σ = 13453534482. Its totient is φ = 13453534480.

The previous prime is 13453534447. The next prime is 13453534487. The reversal of 13453534481 is 18443535431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13142329600 + 311204881 = 114640^2 + 17641^2 .

It is an emirp because it is prime and its reverse (18443535431) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13453534481 is a prime.

It is a super-2 number, since 2×13453534481² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13453534487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6726767240 + 6726767241.

It is an arithmetic number, because the mean of its divisors is an integer number (6726767241).

Almost surely, 2^13453534481 is an apocalyptic number.

It is an amenable number.

13453534481 is a deficient number, since it is larger than the sum of its proper divisors (1).

13453534481 is an equidigital number, since it uses as much as digits as its factorization.

13453534481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 345600, while the sum is 41.

The spelling of 13453534481 in words is "thirteen billion, four hundred fifty-three million, five hundred thirty-four thousand, four hundred eighty-one".