14128091 has 4 divisors (see below), whose sum is σ = 14164800. Its totient is φ = 14091384.

The previous prime is 14128069. The next prime is 14128109. The reversal of 14128091 is 19082141.

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 14128091 - 2¹⁴ = 14111707 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14128091.

It is not an unprimeable number, because it can be changed into a prime (14128021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17771 + ... + 18548.

It is an arithmetic number, because the mean of its divisors is an integer number (3541200).

Almost surely, 2^14128091 is an apocalyptic number.

14128091 is a deficient number, since it is larger than the sum of its proper divisors (36709).

14128091 is an equidigital number, since it uses as much as digits as its factorization.

14128091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36708.

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 14128091 is about 3758.7352926217. The cubic root of 14128091 is about 241.7470377679.

The spelling of 14128091 in words is "fourteen million, one hundred twenty-eight thousand, ninety-one".