13603502461 has 2 divisors, whose sum is σ = 13603502462. Its totient is φ = 13603502460.

The previous prime is 13603502431. The next prime is 13603502519. The reversal of 13603502461 is 16420530631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13473405625 + 130096836 = 116075^2 + 11406^2 .

It is an emirp because it is prime and its reverse (16420530631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13603502461 - 2¹³ = 13603494269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13603502431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6801751230 + 6801751231.

It is an arithmetic number, because the mean of its divisors is an integer number (6801751231).

Almost surely, 2^13603502461 is an apocalyptic number.

It is an amenable number.

13603502461 is a deficient number, since it is larger than the sum of its proper divisors (1).

13603502461 is an equidigital number, since it uses as much as digits as its factorization.

13603502461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 31.

The spelling of 13603502461 in words is "thirteen billion, six hundred three million, five hundred two thousand, four hundred sixty-one".