13461151181 has 4 divisors (see below), whose sum is σ = 13535522364. Its totient is φ = 13386780000.

The previous prime is 13461151177. The next prime is 13461151199. The reversal of 13461151181 is 18115116431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18115116431 = 4799 ⋅3774769.

It can be written as a sum of positive squares in 2 ways, for example, as 2336175556 + 11124975625 = 48334^2 + 105475^2 .

It is a cyclic number.

It is not a de Polignac number, because 13461151181 - 2² = 13461151177 is a prime.

It is a super-2 number, since 2×13461151181² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13461151381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37185320 + ... + 37185681.

It is an arithmetic number, because the mean of its divisors is an integer number (3383880591).

Almost surely, 2^13461151181 is an apocalyptic number.

It is an amenable number.

13461151181 is a deficient number, since it is larger than the sum of its proper divisors (74371183).

13461151181 is an equidigital number, since it uses as much as digits as its factorization.

13461151181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74371182.

The product of its digits is 2880, while the sum is 32.

The spelling of 13461151181 in words is "thirteen billion, four hundred sixty-one million, one hundred fifty-one thousand, one hundred eighty-one".