14231391 has 4 divisors (see below), whose sum is σ = 18975192. Its totient is φ = 9487592.

The previous prime is 14231389. The next prime is 14231417. The reversal of 14231391 is 19313241.

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 14231391 - 2¹ = 14231389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14231341) 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, 2371896 + ... + 2371901.

It is an arithmetic number, because the mean of its divisors is an integer number (4743798).

Almost surely, 2^14231391 is an apocalyptic number.

14231391 is a deficient number, since it is larger than the sum of its proper divisors (4743801).

14231391 is an equidigital number, since it uses as much as digits as its factorization.

14231391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4743800.

The product of its digits is 648, while the sum is 24.

The square root of 14231391 is about 3772.4515901467. The cubic root of 14231391 is about 242.3347994482.

The spelling of 14231391 in words is "fourteen million, two hundred thirty-one thousand, three hundred ninety-one".