13944971 has 4 divisors (see below), whose sum is σ = 14136072. Its totient is φ = 13753872.

The previous prime is 13944949. The next prime is 13944979. The reversal of 13944971 is 17944931.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13944971 - 2⁶ = 13944907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13944979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95441 + ... + 95586.

It is an arithmetic number, because the mean of its divisors is an integer number (3534018).

Almost surely, 2^13944971 is an apocalyptic number.

13944971 is a deficient number, since it is larger than the sum of its proper divisors (191101).

13944971 is an equidigital number, since it uses as much as digits as its factorization.

13944971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191100.

The product of its digits is 27216, while the sum is 38.

The square root of 13944971 is about 3734.2965870429. The cubic root of 13944971 is about 240.6980314893.

The spelling of 13944971 in words is "thirteen million, nine hundred forty-four thousand, nine hundred seventy-one".