14430991 has 2 divisors, whose sum is σ = 14430992. Its totient is φ = 14430990.

The previous prime is 14430989. The next prime is 14431003. The reversal of 14430991 is 19903441.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 14430991 - 2¹ = 14430989 is a prime.

Together with 14430989, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14430901) 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, 7215495 + 7215496.

It is an arithmetic number, because the mean of its divisors is an integer number (7215496).

Almost surely, 2^14430991 is an apocalyptic number.

14430991 is a deficient number, since it is larger than the sum of its proper divisors (1).

14430991 is an equidigital number, since it uses as much as digits as its factorization.

14430991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 14430991 is about 3798.8144203159. The cubic root of 14430991 is about 243.4624858055.

It can be divided in two parts, 144309 and 91, that added together give a square (144400 = 380²).

The spelling of 14430991 in words is "fourteen million, four hundred thirty thousand, nine hundred ninety-one".