214321143 has 4 divisors (see below), whose sum is σ = 285761528. Its totient is φ = 142880760.

The previous prime is 214321139. The next prime is 214321147. The reversal of 214321143 is 341123412.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (214321139) and next prime (214321147).

It is not a de Polignac number, because 214321143 - 2² = 214321139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214321147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35720188 + ... + 35720193.

It is an arithmetic number, because the mean of its divisors is an integer number (71440382).

Almost surely, 2^214321143 is an apocalyptic number.

214321143 is a deficient number, since it is larger than the sum of its proper divisors (71440385).

214321143 is an equidigital number, since it uses as much as digits as its factorization.

214321143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71440384.

The product of its digits is 576, while the sum is 21.

The square root of 214321143 is about 14639.7111651836. The cubic root of 214321143 is about 598.4414578605.

Adding to 214321143 its reverse (341123412), we get a palindrome (555444555).

The spelling of 214321143 in words is "two hundred fourteen million, three hundred twenty-one thousand, one hundred forty-three".