13897241 has 2 divisors, whose sum is σ = 13897242. Its totient is φ = 13897240.

The previous prime is 13897223. The next prime is 13897243. The reversal of 13897241 is 14279831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10272025 + 3625216 = 3205^2 + 1904^2 .

It is a cyclic number.

It is not a de Polignac number, because 13897241 - 2¹⁰ = 13896217 is a prime.

It is a Sophie Germain prime.

Together with 13897243, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (13897243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6948620 + 6948621.

It is an arithmetic number, because the mean of its divisors is an integer number (6948621).

Almost surely, 2^13897241 is an apocalyptic number.

It is an amenable number.

13897241 is a deficient number, since it is larger than the sum of its proper divisors (1).

13897241 is an equidigital number, since it uses as much as digits as its factorization.

13897241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 35.

The square root of 13897241 is about 3727.9003473805. The cubic root of 13897241 is about 240.4231020441.

It can be divided in two parts, 138 and 97241, that added together give a palindrome (97379).

The spelling of 13897241 in words is "thirteen million, eight hundred ninety-seven thousand, two hundred forty-one".