13270645181 has 2 divisors, whose sum is σ = 13270645182. Its totient is φ = 13270645180.

The previous prime is 13270645169. The next prime is 13270645187. The reversal of 13270645181 is 18154607231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10431353956 + 2839291225 = 102134^2 + 53285^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13270645181 is a prime.

It is a super-2 number, since 2×13270645181² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13270645187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6635322590 + 6635322591.

It is an arithmetic number, because the mean of its divisors is an integer number (6635322591).

Almost surely, 2^13270645181 is an apocalyptic number.

It is an amenable number.

13270645181 is a deficient number, since it is larger than the sum of its proper divisors (1).

13270645181 is an equidigital number, since it uses as much as digits as its factorization.

13270645181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 38.

The spelling of 13270645181 in words is "thirteen billion, two hundred seventy million, six hundred forty-five thousand, one hundred eighty-one".