13508267249 has 2 divisors, whose sum is σ = 13508267250. Its totient is φ = 13508267248.

The previous prime is 13508267233. The next prime is 13508267263. The reversal of 13508267249 is 94276280531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8173425649 + 5334841600 = 90407^2 + 73040^2 .

It is an emirp because it is prime and its reverse (94276280531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13508267249 - 2⁴ = 13508267233 is a prime.

It is a weakly prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6754133624 + 6754133625.

It is an arithmetic number, because the mean of its divisors is an integer number (6754133625).

It is a 2-persistent number, because it is pandigital, and so is 2⋅13508267249 = 27016534498, but 3⋅13508267249 = 40524801747 is not.

Almost surely, 2^13508267249 is an apocalyptic number.

It is an amenable number.

13508267249 is a deficient number, since it is larger than the sum of its proper divisors (1).

13508267249 is an equidigital number, since it uses as much as digits as its factorization.

13508267249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 13508267249 in words is "thirteen billion, five hundred eight million, two hundred sixty-seven thousand, two hundred forty-nine".