13081841 has 2 divisors, whose sum is σ = 13081842. Its totient is φ = 13081840.

The previous prime is 13081807. The next prime is 13081903. The reversal of 13081841 is 14818031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12988816 + 93025 = 3604^2 + 305^2 .

It is a cyclic number.

It is not a de Polignac number, because 13081841 - 2²² = 8887537 is a prime.

It is a super-2 number, since 2×13081841² = 342269127898562, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13081841.

It is not a weakly prime, because it can be changed into another prime (13081801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6540920 + 6540921.

It is an arithmetic number, because the mean of its divisors is an integer number (6540921).

Almost surely, 2^13081841 is an apocalyptic number.

It is an amenable number.

13081841 is a deficient number, since it is larger than the sum of its proper divisors (1).

13081841 is an equidigital number, since it uses as much as digits as its factorization.

13081841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 13081841 is about 3616.8827738814. The cubic root of 13081841 is about 235.6258615029.

Adding to 13081841 its reverse (14818031), we get a palindrome (27899872).

The spelling of 13081841 in words is "thirteen million, eighty-one thousand, eight hundred forty-one".