13500305461 has 2 divisors, whose sum is σ = 13500305462. Its totient is φ = 13500305460.

The previous prime is 13500305447. The next prime is 13500305503. The reversal of 13500305461 is 16450300531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12416644900 + 1083660561 = 111430^2 + 32919^2 .

It is a cyclic number.

It is not a de Polignac number, because 13500305461 - 2⁹ = 13500304949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13500305411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6750152730 + 6750152731.

It is an arithmetic number, because the mean of its divisors is an integer number (6750152731).

Almost surely, 2^13500305461 is an apocalyptic number.

It is an amenable number.

13500305461 is a deficient number, since it is larger than the sum of its proper divisors (1).

13500305461 is an equidigital number, since it uses as much as digits as its factorization.

13500305461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 13500305461 its reverse (16450300531), we get a palindrome (29950605992).

The spelling of 13500305461 in words is "thirteen billion, five hundred million, three hundred five thousand, four hundred sixty-one".