135536263549 has 2 divisors, whose sum is σ = 135536263550. Its totient is φ = 135536263548.

The previous prime is 135536263517. The next prime is 135536263561. The reversal of 135536263549 is 945362635531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131098305625 + 4437957924 = 362075^2 + 66618^2 .

It is an emirp because it is prime and its reverse (945362635531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 135536263549 - 2⁵ = 135536263517 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 135536263496 and 135536263505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135536263949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67768131774 + 67768131775.

It is an arithmetic number, because the mean of its divisors is an integer number (67768131775).

Almost surely, 2^135536263549 is an apocalyptic number.

It is an amenable number.

135536263549 is a deficient number, since it is larger than the sum of its proper divisors (1).

135536263549 is an equidigital number, since it uses as much as digits as its factorization.

135536263549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8748000, while the sum is 52.

The spelling of 135536263549 in words is "one hundred thirty-five billion, five hundred thirty-six million, two hundred sixty-three thousand, five hundred forty-nine".