13361249197 has 2 divisors, whose sum is σ = 13361249198. Its totient is φ = 13361249196.

The previous prime is 13361249183. The next prime is 13361249221. The reversal of 13361249197 is 79194216331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11471695236 + 1889553961 = 107106^2 + 43469^2 .

It is a cyclic number.

It is not a de Polignac number, because 13361249197 - 2¹¹ = 13361247149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13361249177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6680624598 + 6680624599.

It is an arithmetic number, because the mean of its divisors is an integer number (6680624599).

Almost surely, 2^13361249197 is an apocalyptic number.

It is an amenable number.

13361249197 is a deficient number, since it is larger than the sum of its proper divisors (1).

13361249197 is an equidigital number, since it uses as much as digits as its factorization.

13361249197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 244944, while the sum is 46.

The spelling of 13361249197 in words is "thirteen billion, three hundred sixty-one million, two hundred forty-nine thousand, one hundred ninety-seven".