13944193 has 2 divisors, whose sum is σ = 13944194. Its totient is φ = 13944192.

The previous prime is 13944181. The next prime is 13944197. The reversal of 13944193 is 39144931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7907344 + 6036849 = 2812^2 + 2457^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13944193 is a prime.

It is not a weakly prime, because it can be changed into another prime (13944197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6972096 + 6972097.

It is an arithmetic number, because the mean of its divisors is an integer number (6972097).

Almost surely, 2^13944193 is an apocalyptic number.

It is an amenable number.

13944193 is a deficient number, since it is larger than the sum of its proper divisors (1).

13944193 is an equidigital number, since it uses as much as digits as its factorization.

13944193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11664, while the sum is 34.

The square root of 13944193 is about 3734.1924160386. The cubic root of 13944193 is about 240.6935551671.

The spelling of 13944193 in words is "thirteen million, nine hundred forty-four thousand, one hundred ninety-three".