13971337 has 2 divisors, whose sum is σ = 13971338. Its totient is φ = 13971336.

The previous prime is 13971317. The next prime is 13971341. The reversal of 13971337 is 73317931.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7268416 + 6702921 = 2696^2 + 2589^2 .

It is an emirp because it is prime and its reverse (73317931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13971337 - 2¹¹ = 13969289 is a prime.

It is not a weakly prime, because it can be changed into another prime (13971317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6985668 + 6985669.

It is an arithmetic number, because the mean of its divisors is an integer number (6985669).

Almost surely, 2^13971337 is an apocalyptic number.

It is an amenable number.

13971337 is a deficient number, since it is larger than the sum of its proper divisors (1).

13971337 is an equidigital number, since it uses as much as digits as its factorization.

13971337 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11907, while the sum is 34.

The square root of 13971337 is about 3737.8251698013. The cubic root of 13971337 is about 240.8496333067.

The spelling of 13971337 in words is "thirteen million, nine hundred seventy-one thousand, three hundred thirty-seven".