13456601309 has 2 divisors, whose sum is σ = 13456601310. Its totient is φ = 13456601308.

The previous prime is 13456601297. The next prime is 13456601359. The reversal of 13456601309 is 90310665431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13383019225 + 73582084 = 115685^2 + 8578^2 .

It is a cyclic number.

It is not a de Polignac number, because 13456601309 - 2⁴ = 13456601293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13456601359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6728300654 + 6728300655.

It is an arithmetic number, because the mean of its divisors is an integer number (6728300655).

Almost surely, 2^13456601309 is an apocalyptic number.

It is an amenable number.

13456601309 is a deficient number, since it is larger than the sum of its proper divisors (1).

13456601309 is an equidigital number, since it uses as much as digits as its factorization.

13456601309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 38.

The spelling of 13456601309 in words is "thirteen billion, four hundred fifty-six million, six hundred one thousand, three hundred nine".