14213231 has 2 divisors, whose sum is σ = 14213232. Its totient is φ = 14213230.

The previous prime is 14213209. The next prime is 14213237. The reversal of 14213231 is 13231241.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14213231 is a prime.

It is a super-2 number, since 2×14213231² = 404031870918722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14213237) 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, 7106615 + 7106616.

It is an arithmetic number, because the mean of its divisors is an integer number (7106616).

Almost surely, 2^14213231 is an apocalyptic number.

14213231 is a deficient number, since it is larger than the sum of its proper divisors (1).

14213231 is an equidigital number, since it uses as much as digits as its factorization.

14213231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 144, while the sum is 17.

The square root of 14213231 is about 3770.0438989487. The cubic root of 14213231 is about 242.2316782759.

Adding to 14213231 its reverse (13231241), we get a palindrome (27444472).

It can be divided in two parts, 14213 and 231, that multiplied together give a triangular number (3283203 = T₂₅₆₂).

The spelling of 14213231 in words is "fourteen million, two hundred thirteen thousand, two hundred thirty-one".