14231918 has 4 divisors (see below), whose sum is σ = 21347880. Its totient is φ = 7115958.

The previous prime is 14231911. The next prime is 14231933. The reversal of 14231918 is 81913241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81913241 = 1543 ⋅53087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14231911) 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, 3557978 + ... + 3557981.

It is an arithmetic number, because the mean of its divisors is an integer number (5336970).

Almost surely, 2^14231918 is an apocalyptic number.

14231918 is a deficient number, since it is larger than the sum of its proper divisors (7115962).

14231918 is an equidigital number, since it uses as much as digits as its factorization.

14231918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7115961.

The product of its digits is 1728, while the sum is 29.

The square root of 14231918 is about 3772.5214379775. The cubic root of 14231918 is about 242.3377906962.

The spelling of 14231918 in words is "fourteen million, two hundred thirty-one thousand, nine hundred eighteen".