13506426149 has 2 divisors, whose sum is σ = 13506426150. Its totient is φ = 13506426148.

The previous prime is 13506426139. The next prime is 13506426187. The reversal of 13506426149 is 94162460531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12980044900 + 526381249 = 113930^2 + 22943^2 .

It is an emirp because it is prime and its reverse (94162460531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13506426149 - 2⁸ = 13506425893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13506426139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6753213074 + 6753213075.

It is an arithmetic number, because the mean of its divisors is an integer number (6753213075).

Almost surely, 2^13506426149 is an apocalyptic number.

It is an amenable number.

13506426149 is a deficient number, since it is larger than the sum of its proper divisors (1).

13506426149 is an equidigital number, since it uses as much as digits as its factorization.

13506426149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 41.

The spelling of 13506426149 in words is "thirteen billion, five hundred six million, four hundred twenty-six thousand, one hundred forty-nine".