13523453261 has 2 divisors, whose sum is σ = 13523453262. Its totient is φ = 13523453260.

The previous prime is 13523453239. The next prime is 13523453263. The reversal of 13523453261 is 16235432531.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13518480361 + 4972900 = 116269^2 + 2230^2 .

It is a cyclic number.

It is not a de Polignac number, because 13523453261 - 2⁶ = 13523453197 is a prime.

Together with 13523453263, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13523453263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6761726630 + 6761726631.

It is an arithmetic number, because the mean of its divisors is an integer number (6761726631).

Almost surely, 2^13523453261 is an apocalyptic number.

It is an amenable number.

13523453261 is a deficient number, since it is larger than the sum of its proper divisors (1).

13523453261 is an equidigital number, since it uses as much as digits as its factorization.

13523453261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64800, while the sum is 35.

Adding to 13523453261 its reverse (16235432531), we get a palindrome (29758885792).

The spelling of 13523453261 in words is "thirteen billion, five hundred twenty-three million, four hundred fifty-three thousand, two hundred sixty-one".