13515034261 has 2 divisors, whose sum is σ = 13515034262. Its totient is φ = 13515034260.

The previous prime is 13515034237. The next prime is 13515034277. The reversal of 13515034261 is 16243051531.

13515034261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12428013361 + 1087020900 = 111481^2 + 32970^2 .

It is a cyclic number.

It is not a de Polignac number, because 13515034261 - 2¹⁹ = 13514509973 is a prime.

It is a super-2 number, since 2×13515034261² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13515034201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6757517130 + 6757517131.

It is an arithmetic number, because the mean of its divisors is an integer number (6757517131).

Almost surely, 2^13515034261 is an apocalyptic number.

It is an amenable number.

13515034261 is a deficient number, since it is larger than the sum of its proper divisors (1).

13515034261 is an equidigital number, since it uses as much as digits as its factorization.

13515034261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 31.

Adding to 13515034261 its reverse (16243051531), we get a palindrome (29758085792).

The spelling of 13515034261 in words is "thirteen billion, five hundred fifteen million, thirty-four thousand, two hundred sixty-one".