13318849 has 2 divisors, whose sum is σ = 13318850. Its totient is φ = 13318848.

The previous prime is 13318843. The next prime is 13318873. The reversal of 13318849 is 94881331.

13318849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10445824 + 2873025 = 3232^2 + 1695^2 .

It is a cyclic number.

It is not a de Polignac number, because 13318849 - 2¹¹ = 13316801 is a prime.

It is not a weakly prime, because it can be changed into another prime (13318843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6659424 + 6659425.

It is an arithmetic number, because the mean of its divisors is an integer number (6659425).

Almost surely, 2^13318849 is an apocalyptic number.

It is an amenable number.

13318849 is a deficient number, since it is larger than the sum of its proper divisors (1).

13318849 is an equidigital number, since it uses as much as digits as its factorization.

13318849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 37.

The square root of 13318849 is about 3649.4998287437. The cubic root of 13318849 is about 237.0403238076.

The spelling of 13318849 in words is "thirteen million, three hundred eighteen thousand, eight hundred forty-nine".