14127991 has 2 divisors, whose sum is σ = 14127992. Its totient is φ = 14127990.

The previous prime is 14127979. The next prime is 14128019. The reversal of 14127991 is 19972141.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 14127991 - 2⁷ = 14127863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14127931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7063995 + 7063996.

It is an arithmetic number, because the mean of its divisors is an integer number (7063996).

Almost surely, 2^14127991 is an apocalyptic number.

14127991 is a deficient number, since it is larger than the sum of its proper divisors (1).

14127991 is an equidigital number, since it uses as much as digits as its factorization.

14127991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4536, while the sum is 34.

The square root of 14127991 is about 3758.7219902515. The cubic root of 14127991 is about 241.7464673969.

The spelling of 14127991 in words is "fourteen million, one hundred twenty-seven thousand, nine hundred ninety-one".