14143979 has 2 divisors, whose sum is σ = 14143980. Its totient is φ = 14143978.

The previous prime is 14143957. The next prime is 14143991. The reversal of 14143979 is 97934141.

It is a strong prime.

It is an emirp because it is prime and its reverse (97934141) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14143979 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (14143579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7071989 + 7071990.

It is an arithmetic number, because the mean of its divisors is an integer number (7071990).

Almost surely, 2^14143979 is an apocalyptic number.

14143979 is a deficient number, since it is larger than the sum of its proper divisors (1).

14143979 is an equidigital number, since it uses as much as digits as its factorization.

14143979 is an evil number, because the sum of its binary digits is even.

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

The square root of 14143979 is about 3760.8481756115. The cubic root of 14143979 is about 241.8376241526.

The spelling of 14143979 in words is "fourteen million, one hundred forty-three thousand, nine hundred seventy-nine".