13405200161 has 2 divisors, whose sum is σ = 13405200162. Its totient is φ = 13405200160.

The previous prime is 13405200143. The next prime is 13405200187. The reversal of 13405200161 is 16100250431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13237653025 + 167547136 = 115055^2 + 12944^2 .

It is an emirp because it is prime and its reverse (16100250431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13405200161 - 2²⁶ = 13338091297 is a prime.

It is not a weakly prime, because it can be changed into another prime (13405200121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6702600080 + 6702600081.

It is an arithmetic number, because the mean of its divisors is an integer number (6702600081).

Almost surely, 2^13405200161 is an apocalyptic number.

It is an amenable number.

13405200161 is a deficient number, since it is larger than the sum of its proper divisors (1).

13405200161 is an equidigital number, since it uses as much as digits as its factorization.

13405200161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 13405200161 its reverse (16100250431), we get a palindrome (29505450592).

The spelling of 13405200161 in words is "thirteen billion, four hundred five million, two hundred thousand, one hundred sixty-one".